diff --git a/server/control-plane-store.mjs b/server/control-plane-store.mjs
index e295b48..d406a54 100644
--- a/server/control-plane-store.mjs
+++ b/server/control-plane-store.mjs
@@ -1147,15 +1147,62 @@ function normalizeClientIntegrations(payload, fallback = {}) {
   const taskManager = typeof integrations.taskManager === "object" && integrations.taskManager !== null ? integrations.taskManager : {};
   const fallbackTaskManager =
     typeof fallbackIntegrations.taskManager === "object" && fallbackIntegrations.taskManager !== null ? fallbackIntegrations.taskManager : {};
+  const workspaces = normalizeTaskManagerWorkspaces(taskManager, fallbackTaskManager);
+  const primaryWorkspace = workspaces.find((workspace) => workspace.isPrimary) ?? workspaces[0] ?? null;
 
   return {
     taskManager: {
-      workspaceSlug: nullableStringWithFallback(taskManager.workspaceSlug, fallbackTaskManager.workspaceSlug ?? null),
-      workspaceName: nullableStringWithFallback(taskManager.workspaceName, fallbackTaskManager.workspaceName ?? null),
+      workspaceSlug: primaryWorkspace?.slug ?? null,
+      workspaceName: primaryWorkspace?.name ?? null,
+      workspaces,
     },
   };
 }
 
+function normalizeTaskManagerWorkspaces(taskManager, fallbackTaskManager = {}) {
+  const sourceWorkspaces = Array.isArray(taskManager.workspaces)
+    ? taskManager.workspaces
+    : Array.isArray(fallbackTaskManager.workspaces)
+      ? fallbackTaskManager.workspaces
+      : [];
+  const legacySlug = nullableStringWithFallback(taskManager.workspaceSlug, fallbackTaskManager.workspaceSlug ?? null);
+  const legacyName = nullableStringWithFallback(taskManager.workspaceName, fallbackTaskManager.workspaceName ?? null);
+  const bySlug = new Map();
+
+  for (const item of sourceWorkspaces) {
+    if (typeof item !== "object" || item === null) continue;
+    const slug = nullableString(item.slug);
+    if (!slug) continue;
+    bySlug.set(slug, {
+      slug,
+      name: nullableStringWithFallback(item.name, null),
+      isPrimary: item.isPrimary === true,
+    });
+  }
+
+  if (legacySlug && !bySlug.has(legacySlug)) {
+    bySlug.set(legacySlug, { slug: legacySlug, name: legacyName, isPrimary: true });
+  }
+
+  const workspaces = [...bySlug.values()];
+  if (!workspaces.length) return [];
+
+  if (!workspaces.some((workspace) => workspace.isPrimary)) {
+    workspaces[0].isPrimary = true;
+  }
+
+  let primarySeen = false;
+  return workspaces.map((workspace) => {
+    const isPrimary = workspace.isPrimary && !primarySeen;
+    if (isPrimary) primarySeen = true;
+    return {
+      slug: workspace.slug,
+      name: workspace.name ?? null,
+      isPrimary,
+    };
+  });
+}
+
 function normalizeTaskManagerMembershipRole(value) {
   return value === "guest" || value === "admin" || value === "member" ? value : "member";
 }
diff --git a/server/dev-server.mjs b/server/dev-server.mjs
index 6cd985a..585319f 100644
--- a/server/dev-server.mjs
+++ b/server/dev-server.mjs
@@ -610,7 +610,7 @@ app.post("/api/admin/task-manager/workspace-memberships/remove", requireLauncher
   }
 
   const membership = snapshot.data.memberships.find((candidate) => candidate.clientId === client.id && candidate.userId === user.id);
-  const workspaceSlug = client.integrations?.taskManager?.workspaceSlug ?? null;
+  const workspaceSlug = normalizeOptionalText(req.body?.workspaceSlug) ?? client.integrations?.taskManager?.workspaceSlug ?? null;
 
   if (!workspaceSlug) {
     res.status(400).json({ ok: false, error: "task_manager_workspace_not_configured" });
diff --git a/src/app/LauncherApp.tsx b/src/app/LauncherApp.tsx
index 6cbcb50..bc79af7 100644
--- a/src/app/LauncherApp.tsx
+++ b/src/app/LauncherApp.tsx
@@ -472,8 +472,8 @@ export function LauncherApp() {
       });
   }
 
-  function handleSetTaskManagerWorkspaceMemberRole(command: { clientId: string; userId: string; role: TaskManagerWorkspaceMemberRole }) {
-    const membershipKey = `${command.clientId}:${command.userId}`;
+  function handleSetTaskManagerWorkspaceMemberRole(command: { clientId: string; userId: string; role: TaskManagerWorkspaceMemberRole; workspaceSlug?: string }) {
+    const membershipKey = `${command.clientId}:${command.userId}:${command.workspaceSlug ?? "primary"}`;
 
     if (pendingTaskManagerMemberships[membershipKey]) {
       return;
@@ -482,10 +482,11 @@ export function LauncherApp() {
     setPendingTaskManagerMemberships((current) => ({ ...current, [membershipKey]: true }));
     const request =
       command.role === "unset"
-        ? removeAdminTaskManagerWorkspaceMembership({ clientId: command.clientId, userId: command.userId })
+        ? removeAdminTaskManagerWorkspaceMembership({ clientId: command.clientId, userId: command.userId, workspaceSlug: command.workspaceSlug })
         : ensureAdminTaskManagerWorkspaceMembership({
             clientId: command.clientId,
             userId: command.userId,
+            workspaceSlug: command.workspaceSlug,
             role: command.role,
             setLastWorkspace: true,
           });
diff --git a/src/entities/client/types.ts b/src/entities/client/types.ts
index 1627850..405619b 100644
--- a/src/entities/client/types.ts
+++ b/src/entities/client/types.ts
@@ -1,6 +1,12 @@
 export type ClientType = "company" | "person";
 export type ClientStatus = "active" | "suspended" | "demo" | "expired";
 
+export interface ClientTaskManagerWorkspaceBinding {
+  slug: string;
+  name?: string | null;
+  isPrimary?: boolean;
+}
+
 export interface Client {
   id: string;
   type: ClientType;
@@ -18,6 +24,7 @@ export interface Client {
     taskManager?: {
       workspaceSlug?: string | null;
       workspaceName?: string | null;
+      workspaces?: ClientTaskManagerWorkspaceBinding[];
     };
   };
   notes?: string | null;
diff --git a/src/shared/api/adminApi.ts b/src/shared/api/adminApi.ts
index d14705d..58bb478 100644
--- a/src/shared/api/adminApi.ts
+++ b/src/shared/api/adminApi.ts
@@ -150,6 +150,7 @@ export async function deleteAdminMembership(membershipId: string): Promise<Contr
 export async function ensureAdminTaskManagerWorkspaceMembership(payload: {
   clientId: string;
   userId: string;
+  workspaceSlug?: string;
   role?: Exclude<TaskManagerWorkspaceMemberRole, "unset">;
   setLastWorkspace?: boolean;
 }): Promise<TaskManagerWorkspaceMembershipMutationResult> {
@@ -162,6 +163,7 @@ export async function ensureAdminTaskManagerWorkspaceMembership(payload: {
 export async function removeAdminTaskManagerWorkspaceMembership(payload: {
   clientId: string;
   userId: string;
+  workspaceSlug?: string;
 }): Promise<TaskManagerWorkspaceMembershipRemoveMutationResult> {
   return requestJson<TaskManagerWorkspaceMembershipRemoveMutationResult>("/api/admin/task-manager/workspace-memberships/remove", {
     method: "POST",
diff --git a/src/styles/globals.css b/src/styles/globals.css
index a448694..8f5e1fa 100644
--- a/src/styles/globals.css
+++ b/src/styles/globals.css
@@ -2837,6 +2837,12 @@ code {
   gap: 0.6rem;
 }
 
+.service-content-modal__head-actions {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.55rem;
+}
+
 .service-content-modal__head h3 {
   margin: 0.1rem 0 0;
   font-size: 1.05rem;
@@ -3177,6 +3183,14 @@ code {
   opacity: 0.72;
 }
 
+.access-cell--modal {
+  cursor: pointer;
+}
+
+.access-cell:disabled {
+  cursor: wait;
+}
+
 .access-cell:not(.access-cell--pending):hover,
 .access-cell:not(.access-cell--pending)[aria-expanded="true"] {
   filter: brightness(1.12);
@@ -3199,6 +3213,67 @@ code {
   background: rgba(255, 120, 120, 0.08);
 }
 
+.task-access-modal {
+  width: min(44rem, calc(100vw - 2rem));
+}
+
+.task-access-summary {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 0.65rem;
+}
+
+.task-workspace-access-list {
+  display: grid;
+  gap: 0.7rem;
+}
+
+.task-workspace-access-card {
+  display: grid;
+  gap: 0.75rem;
+  padding: 0.85rem;
+  border-radius: 1rem;
+  background: rgba(255, 255, 255, 0.055);
+}
+
+.task-workspace-access-card__head {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 10.8rem;
+  gap: 0.75rem;
+  align-items: center;
+}
+
+.task-workspace-access-card__head strong,
+.task-workspace-access-card__head small {
+  display: block;
+  min-width: 0;
+}
+
+.task-workspace-access-card__head small {
+  margin-top: 0.2rem;
+  color: var(--text-muted);
+  font-size: 0.75rem;
+}
+
+.task-project-access-note {
+  display: grid;
+  gap: 0.22rem;
+  padding: 0.7rem;
+  border-radius: 0.85rem;
+  background: rgba(0, 0, 0, 0.18);
+}
+
+.task-project-access-note strong {
+  color: var(--text-secondary);
+  font-size: 0.8rem;
+}
+
+.task-project-access-note span {
+  color: var(--text-muted);
+  font-size: 0.76rem;
+  line-height: 1.35;
+}
+
 .access-explanation {
   display: grid;
   align-content: start;
@@ -3273,6 +3348,84 @@ code {
   padding: 1rem;
 }
 
+.task-workspace-picker-card {
+  border-radius: var(--launcher-radius-control);
+  background:
+    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02)),
+    rgba(0, 0, 0, 0.18);
+  padding: 0.42rem;
+}
+
+.task-workspace-picker {
+  display: grid;
+  max-height: 13.5rem;
+  gap: 0.45rem;
+  overflow: auto;
+  padding: 0;
+  border-radius: var(--launcher-radius-control);
+  background: transparent;
+}
+
+.task-workspace-picker__empty {
+  padding: 0.75rem;
+  color: var(--text-muted);
+  font-size: 0.8rem;
+}
+
+.task-workspace-chip {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  gap: 0.65rem;
+  align-items: center;
+  width: 100%;
+  min-height: 3rem;
+  border: 0;
+  border-radius: calc(var(--launcher-radius-control) - 0.2rem);
+  background: rgba(255, 255, 255, 0.055);
+  color: var(--text-secondary);
+  padding: 0.55rem 0.7rem;
+  text-align: left;
+  cursor: pointer;
+}
+
+.task-workspace-chip:hover,
+.task-workspace-chip:focus-visible {
+  background: rgba(255, 255, 255, 0.09);
+}
+
+.task-workspace-chip--selected {
+  background: rgba(181, 255, 90, 0.14);
+  color: #defeb2;
+}
+
+.task-workspace-chip strong,
+.task-workspace-chip small {
+  display: block;
+  min-width: 0;
+}
+
+.task-workspace-chip small {
+  margin-top: 0.16rem;
+  color: var(--text-muted);
+  font-size: 0.72rem;
+}
+
+.task-workspace-chip em {
+  border-radius: var(--launcher-radius-circle);
+  background: rgba(255, 255, 255, 0.08);
+  color: var(--text-secondary);
+  padding: 0.36rem 0.56rem;
+  font-size: 0.68rem;
+  font-style: normal;
+  font-weight: 820;
+  white-space: nowrap;
+}
+
+.task-workspace-chip--selected em {
+  background: rgba(181, 255, 90, 0.16);
+  color: #defeb2;
+}
+
 .invite-form__fields {
   display: grid;
   grid-template-columns: minmax(0, 1fr) 12rem;
diff --git a/src/widgets/admin-overlay/AdminOverlay.tsx b/src/widgets/admin-overlay/AdminOverlay.tsx
index 3701b77..b3757c3 100644
--- a/src/widgets/admin-overlay/AdminOverlay.tsx
+++ b/src/widgets/admin-overlay/AdminOverlay.tsx
@@ -41,7 +41,7 @@ import {
   X,
 } from "lucide-react";
 import type { ServiceAppRole } from "../../entities/access/types";
-import type { Client, ClientStatus, ClientType } from "../../entities/client/types";
+import type { Client, ClientStatus, ClientTaskManagerWorkspaceBinding, ClientType } from "../../entities/client/types";
 import type { Invite, InviteStatus } from "../../entities/invite/types";
 import { createServiceLaunchLinkPatch, getServiceLaunchLink } from "../../entities/service/links";
 import type { MediaKind, Service, ServiceMediaSource, ServiceStatus } from "../../entities/service/types";
@@ -89,7 +89,7 @@ type AdminSection =
 
 type AccessAssignmentRole = Exclude<ServiceAppRole, "owner">;
 export type AccessAssignmentValue = AccessAssignmentRole | "deny" | "unset";
-type TaskManagerRoleSelectValue = TaskManagerWorkspaceMemberRole | "pending";
+type OperationalCoreRoleSelectValue = AccessAssignmentValue | "pending";
 
 export interface SetUserServiceAccessCommand {
   userId: string;
@@ -110,6 +110,7 @@ export interface CreateUserCommand {
 export interface EnsureTaskManagerWorkspaceMemberCommand {
   clientId: string;
   userId: string;
+  workspaceSlug?: string;
   role: TaskManagerWorkspaceMemberRole;
 }
 
@@ -936,27 +937,16 @@ const auditResultOptions: Array<AdminStatusOption<"success" | "warning" | "error
 
 const accessAssignmentOptions: Array<NodeDcSelectOption<AccessAssignmentValue>> = [
   { value: "unset", label: "—", description: "Не назначен" },
-  { value: "viewer", label: "viewer", description: "Просмотр", tone: "green" },
-  { value: "member", label: "member", description: "Участник", tone: "green" },
-  { value: "admin", label: "admin", description: "Администратор", tone: "green" },
-  { value: "deny", label: "Deny", description: "Исключение", tone: "red" },
+  { value: "viewer", label: "Гость", description: "Просмотр", tone: "green" },
+  { value: "member", label: "Участник", description: "Рабочий доступ", tone: "green" },
+  { value: "admin", label: "Админ", description: "Администрирование", tone: "green" },
+  { value: "deny", label: "Заблокирован", description: "Запрет доступа", tone: "red" },
 ];
 
-function buildTaskManagerRoleOptions({
-  hasWorkspace,
-  disabled,
-}: {
-  hasWorkspace: boolean;
-  disabled: boolean;
-}): Array<NodeDcSelectOption<TaskManagerRoleSelectValue>> {
-  return [
-    { value: "unset", label: hasWorkspace ? "—" : "Workspace не выбран" },
-    { value: "guest", label: "Гость", disabled: !hasWorkspace || disabled },
-    { value: "member", label: "Участник", disabled: !hasWorkspace || disabled },
-    { value: "admin", label: "Админ", disabled: !hasWorkspace || disabled },
-    { value: "pending", label: "Сохраняем...", disabled: true, hidden: true },
-  ];
-}
+const operationalCoreRoleOptions: Array<NodeDcSelectOption<OperationalCoreRoleSelectValue>> = [
+  ...accessAssignmentOptions,
+  { value: "pending", label: "Сохраняем...", disabled: true, hidden: true },
+];
 
 function membershipRoleLabel(role: ClientMembershipRole): string {
   return membershipRoleOptions.find((option) => option.value === role)?.label ?? role;
@@ -970,16 +960,76 @@ function mainStatusLabel(value: LauncherUserStatus): string {
   return mainStatusOptions.find((option) => option.value === value)?.label ?? value;
 }
 
-function taskManagerRoleLabel(role: TaskManagerWorkspaceMemberRole | TaskManagerRoleSelectValue): string {
-  const labels: Record<TaskManagerRoleSelectValue, string> = {
-    unset: "—",
-    guest: "Гость",
-    member: "Участник",
-    admin: "Админ",
-    pending: "Сохраняем...",
-  };
+function getClientTaskManagerWorkspaces(client: Client): ClientTaskManagerWorkspaceBinding[] {
+  const taskManager = client.integrations?.taskManager;
+  const bySlug = new Map<string, ClientTaskManagerWorkspaceBinding>();
 
-  return labels[role];
+  for (const workspace of taskManager?.workspaces ?? []) {
+    if (!workspace.slug) continue;
+    bySlug.set(workspace.slug, {
+      slug: workspace.slug,
+      name: workspace.name ?? null,
+      isPrimary: workspace.isPrimary === true,
+    });
+  }
+
+  if (taskManager?.workspaceSlug && !bySlug.has(taskManager.workspaceSlug)) {
+    bySlug.set(taskManager.workspaceSlug, {
+      slug: taskManager.workspaceSlug,
+      name: taskManager.workspaceName ?? null,
+      isPrimary: true,
+    });
+  }
+
+  const workspaces = [...bySlug.values()];
+  if (!workspaces.length) return [];
+
+  if (!workspaces.some((workspace) => workspace.isPrimary)) {
+    workspaces[0].isPrimary = true;
+  }
+
+  let primarySeen = false;
+  return workspaces.map((workspace) => {
+    const isPrimary = workspace.isPrimary === true && !primarySeen;
+    if (isPrimary) primarySeen = true;
+    return { ...workspace, isPrimary };
+  });
+}
+
+function getPrimaryTaskManagerWorkspace(client: Client): ClientTaskManagerWorkspaceBinding | null {
+  const workspaces = getClientTaskManagerWorkspaces(client);
+  return workspaces.find((workspace) => workspace.isPrimary) ?? workspaces[0] ?? null;
+}
+
+function getTaskManagerMembershipRole(data: LauncherData, clientId: string, userId: string, workspaceSlug: string): TaskManagerWorkspaceMemberRole {
+  return data.taskManagerMemberships.find((membership) => membership.clientId === clientId && membership.userId === userId && membership.workspaceSlug === workspaceSlug)?.role ?? "unset";
+}
+
+function normalizeClientTaskManagerWorkspaceDraft(workspaces: ClientTaskManagerWorkspaceBinding[]): ClientTaskManagerWorkspaceBinding[] {
+  const bySlug = new Map<string, ClientTaskManagerWorkspaceBinding>();
+
+  for (const workspace of workspaces) {
+    if (!workspace.slug) continue;
+    bySlug.set(workspace.slug, {
+      slug: workspace.slug,
+      name: workspace.name ?? null,
+      isPrimary: workspace.isPrimary === true,
+    });
+  }
+
+  const normalized = [...bySlug.values()];
+  if (!normalized.length) return [];
+
+  if (!normalized.some((workspace) => workspace.isPrimary)) {
+    normalized[0].isPrimary = true;
+  }
+
+  let primarySeen = false;
+  return normalized.map((workspace) => {
+    const isPrimary = workspace.isPrimary === true && !primarySeen;
+    if (isPrimary) primarySeen = true;
+    return { ...workspace, isPrimary };
+  });
 }
 
 function AdminStaticPill({ children }: { children: ReactNode }) {
@@ -1609,15 +1659,9 @@ function ClientEditorModal({
   canDelete: boolean;
 }) {
   const [draft, setDraft] = useState<Client>(client);
-  const taskManagerWorkspaceOptions: Array<NodeDcSelectOption<string>> = [
-    { value: "none", label: "Не привязан" },
-    ...taskManagerWorkspaces.map((workspace) => ({
-      value: workspace.slug,
-      label: workspace.name,
-      description: `${workspace.slug} · ${workspace.memberCount} участников`,
-    })),
-  ];
-  const selectedTaskManagerWorkspaceSlug = draft.integrations?.taskManager?.workspaceSlug ?? "none";
+  const taskManagerWorkspaceBindings = getClientTaskManagerWorkspaces(draft);
+  const selectedTaskManagerWorkspaceSlugs = new Set(taskManagerWorkspaceBindings.map((workspace) => workspace.slug));
+  const primaryTaskManagerWorkspace = getPrimaryTaskManagerWorkspace(draft);
 
   useEffect(() => setDraft(client), [client]);
 
@@ -1625,26 +1669,66 @@ function ClientEditorModal({
     setDraft((current) => ({ ...current, [key]: value }));
   }
 
-  function updateTaskManagerWorkspace(workspaceSlug: string) {
-    const selectedWorkspace = taskManagerWorkspaces.find((workspace) => workspace.slug === workspaceSlug);
-
+  function updateTaskManagerWorkspaces(workspaces: ClientTaskManagerWorkspaceBinding[]) {
+    const primaryWorkspace = workspaces.find((workspace) => workspace.isPrimary) ?? workspaces[0] ?? null;
     setDraft((current) => ({
       ...current,
       integrations: {
         ...current.integrations,
         taskManager: {
           ...current.integrations?.taskManager,
-          workspaceSlug: workspaceSlug === "none" ? null : workspaceSlug,
-          workspaceName: selectedWorkspace?.name ?? null,
+          workspaceSlug: primaryWorkspace?.slug ?? null,
+          workspaceName: primaryWorkspace?.name ?? null,
+          workspaces,
         },
       },
     }));
   }
 
+  function toggleTaskManagerWorkspace(workspace: TaskManagerWorkspaceSummary) {
+    const currentWorkspaces = getClientTaskManagerWorkspaces(draft);
+    const exists = currentWorkspaces.some((item) => item.slug === workspace.slug);
+    const nextWorkspaces = exists
+      ? currentWorkspaces.filter((item) => item.slug !== workspace.slug)
+      : [
+          ...currentWorkspaces,
+          {
+            slug: workspace.slug,
+            name: workspace.name,
+            isPrimary: currentWorkspaces.length === 0,
+          },
+        ];
+
+    updateTaskManagerWorkspaces(normalizeClientTaskManagerWorkspaceDraft(nextWorkspaces));
+  }
+
+  function setPrimaryTaskManagerWorkspace(workspaceSlug: string) {
+    const nextWorkspaces = getClientTaskManagerWorkspaces(draft).map((workspace) => ({
+      ...workspace,
+      isPrimary: workspace.slug === workspaceSlug,
+    }));
+    updateTaskManagerWorkspaces(normalizeClientTaskManagerWorkspaceDraft(nextWorkspaces));
+  }
+
   return (
     <div className="service-content-modal-layer" role="dialog" aria-modal="true" aria-label={`Редактор клиента ${client.name}`}>
       <article className="service-content-modal admin-entity-modal">
-        <EntityModalHead eyebrow="Клиент" title={client.name} onClose={onClose} />
+        <EntityModalHead
+          eyebrow="Клиент"
+          title={client.name}
+          onClose={onClose}
+          actions={
+            <IconButton
+              label={taskManagerWorkspacesLoading ? "Обновляем workspace Operational Core" : "Обновить workspace Operational Core"}
+              className="admin-circle-action admin-circle-action--solid"
+              type="button"
+              disabled={taskManagerWorkspacesLoading}
+              onClick={onRefreshTaskManagerWorkspaces}
+            >
+              <RefreshCw size={16} />
+            </IconButton>
+          }
+        />
         <div className="service-content-modal__grid">
           <label className="service-content-field">
             <span>Название</span>
@@ -1674,32 +1758,58 @@ function ClientEditorModal({
             <AdminStatusDropdown value={draft.status} options={clientStatusOptions} label="Статус клиента" onChange={(status) => update("status", status)} />
           </div>
           <div className="service-content-field service-content-field--wide">
-            <span>Operational Core workspace</span>
-            <div className="admin-field-row">
-              <NodeDcSelect
-                className="admin-modal-select-wrap"
-                triggerClassName="admin-modal-select-trigger"
-                value={selectedTaskManagerWorkspaceSlug}
-                options={taskManagerWorkspaceOptions}
-                label="Operational Core workspace"
-                searchable
-                minMenuWidth={280}
-                onChange={updateTaskManagerWorkspace}
-              />
-              <IconButton
-                label={taskManagerWorkspacesLoading ? "Обновляем workspace Operational Core" : "Обновить workspace Operational Core"}
-                className="admin-circle-action admin-circle-action--solid"
-                type="button"
-                disabled={taskManagerWorkspacesLoading}
-                onClick={onRefreshTaskManagerWorkspaces}
-              >
-                <RefreshCw size={16} />
-              </IconButton>
+            <span>Operational Core workspaces</span>
+            <div className="task-workspace-picker-card">
+              <div className="task-workspace-picker" role="list" aria-label="Operational Core workspaces клиента">
+                {taskManagerWorkspaces.length ? (
+                  taskManagerWorkspaces.map((workspace) => {
+                    const selected = selectedTaskManagerWorkspaceSlugs.has(workspace.slug);
+                    const primary = primaryTaskManagerWorkspace?.slug === workspace.slug;
+
+                    return (
+                      <button
+                        key={workspace.slug}
+                        className={cn("task-workspace-chip", selected && "task-workspace-chip--selected")}
+                        type="button"
+                        aria-pressed={selected}
+                        onClick={() => toggleTaskManagerWorkspace(workspace)}
+                      >
+                        <span>
+                          <strong>{workspace.name}</strong>
+                          <small>
+                            {workspace.slug} · {workspace.memberCount} участников
+                          </small>
+                        </span>
+                        {selected ? (
+                          <em
+                            role="button"
+                            tabIndex={0}
+                            onClick={(event) => {
+                              event.stopPropagation();
+                              setPrimaryTaskManagerWorkspace(workspace.slug);
+                            }}
+                            onKeyDown={(event) => {
+                              if (event.key !== "Enter" && event.key !== " ") return;
+                              event.preventDefault();
+                              event.stopPropagation();
+                              setPrimaryTaskManagerWorkspace(workspace.slug);
+                            }}
+                          >
+                            {primary ? "Основной" : "Сделать основным"}
+                          </em>
+                        ) : null}
+                      </button>
+                    );
+                  })
+                ) : (
+                  <span className="task-workspace-picker__empty">Workspace Operational Core не загружены</span>
+                )}
+              </div>
             </div>
             <small>
               {taskManagerWorkspacesError
                 ? taskManagerWorkspacesError
-                : "Эта привязка используется для назначения участников клиента в workspace Task Manager."}
+                : "Эти workspace доступны для детальных назначений пользователей в Operational Core."}
             </small>
           </div>
           <label className="service-content-field">
@@ -1945,16 +2055,29 @@ function GroupEditorModal({
   );
 }
 
-function EntityModalHead({ eyebrow, title, onClose }: { eyebrow: string; title: string; onClose: () => void }) {
+function EntityModalHead({
+  eyebrow,
+  title,
+  onClose,
+  actions,
+}: {
+  eyebrow: string;
+  title: string;
+  onClose: () => void;
+  actions?: ReactNode;
+}) {
   return (
     <div className="service-content-modal__head">
       <div>
         <p className="eyebrow">{eyebrow}</p>
         <h3>{title}</h3>
       </div>
-      <IconButton label="Закрыть редактор" className="admin-circle-action" type="button" onClick={onClose}>
-        <X size={15} strokeWidth={1.45} />
-      </IconButton>
+      <div className="service-content-modal__head-actions">
+        {actions}
+        <IconButton label="Закрыть редактор" className="admin-circle-action" type="button" onClick={onClose}>
+          <X size={15} strokeWidth={1.45} />
+        </IconButton>
+      </div>
     </div>
   );
 }
@@ -2119,7 +2242,9 @@ function AccessSection({
   onSetTaskManagerWorkspaceMemberRole: (command: EnsureTaskManagerWorkspaceMemberCommand) => void;
 }) {
   const hasUsers = matrix.users.length > 0;
-  const taskManagerWorkspace = matrix.client.integrations?.taskManager?.workspaceSlug ?? null;
+  const taskManagerWorkspaces = getClientTaskManagerWorkspaces(matrix.client);
+  const primaryTaskManagerWorkspace = getPrimaryTaskManagerWorkspace(matrix.client);
+  const [detailsCell, setDetailsCell] = useState<AccessMatrixCell | null>(null);
 
   if (!hasUsers) {
     return (
@@ -2149,7 +2274,7 @@ function AccessSection({
 
   const selectedUser = selectedCell ? getUser(data, selectedCell.userId) : null;
   const selectedService = selectedCell ? getService(data, selectedCell.serviceId) : null;
-  const accessGridTemplateColumns = `15rem repeat(${matrix.services.length + 2}, 9.7rem)`;
+  const accessGridTemplateColumns = `15rem repeat(2, 9.7rem) repeat(${matrix.services.length}, 11.25rem)`;
 
   return (
     <div className="access-layout">
@@ -2180,7 +2305,7 @@ function AccessSection({
               if (!membership) return null;
 
               const protectedUser = user.id === "user_root";
-              const pendingKey = `${matrix.client.id}:${user.id}`;
+              const pendingKey = `${matrix.client.id}:${user.id}:${primaryTaskManagerWorkspace?.slug ?? "primary"}`;
               const pendingTaskerAssignment = Boolean(pendingTaskManagerMemberships[pendingKey]);
               const forcedTaskManagerAdmin = membership.role === "client_owner";
 
@@ -2220,14 +2345,16 @@ function AccessSection({
                           onSetAccess={(value) => {
                             onSetUserServiceAccess({ userId: user.id, serviceId: service.id, value });
 
-                            if (!isTaskManagerService || !taskManagerWorkspace || protectedUser || forcedTaskManagerAdmin) return;
+                            if (!isTaskManagerService || !primaryTaskManagerWorkspace || protectedUser || forcedTaskManagerAdmin) return;
 
                             onSetTaskManagerWorkspaceMemberRole({
                               clientId: matrix.client.id,
                               userId: user.id,
+                              workspaceSlug: primaryTaskManagerWorkspace.slug,
                               role: accessAssignmentToTaskManagerRole(value),
                             });
                           }}
+                          onOpenDetails={isTaskManagerService ? () => setDetailsCell(cell) : undefined}
                         />
                       </div>
                     );
@@ -2264,6 +2391,22 @@ function AccessSection({
           </>
         )}
       </GlassSurface>
+
+      {detailsCell ? (
+        <OperationalCoreAccessModal
+          data={data}
+          client={matrix.client}
+          user={getUser(data, detailsCell.userId)}
+          service={getService(data, detailsCell.serviceId)}
+          cell={detailsCell}
+          workspaces={taskManagerWorkspaces}
+          pendingAccessAssignments={pendingAccessAssignments}
+          pendingTaskManagerMemberships={pendingTaskManagerMemberships}
+          onClose={() => setDetailsCell(null)}
+          onSetUserServiceAccess={onSetUserServiceAccess}
+          onSetTaskManagerWorkspaceMemberRole={onSetTaskManagerWorkspaceMemberRole}
+        />
+      ) : null}
     </div>
   );
 }
@@ -2351,6 +2494,117 @@ function MainRoleControl({
   );
 }
 
+function OperationalCoreAccessModal({
+  data,
+  client,
+  user,
+  service,
+  cell,
+  workspaces,
+  pendingAccessAssignments,
+  pendingTaskManagerMemberships,
+  onClose,
+  onSetUserServiceAccess,
+  onSetTaskManagerWorkspaceMemberRole,
+}: {
+  data: LauncherData;
+  client: Client;
+  user: LauncherUser;
+  service: Service;
+  cell: AccessMatrixCell;
+  workspaces: ClientTaskManagerWorkspaceBinding[];
+  pendingAccessAssignments: Record<string, AccessAssignmentValue>;
+  pendingTaskManagerMemberships: Record<string, boolean>;
+  onClose: () => void;
+  onSetUserServiceAccess: (command: SetUserServiceAccessCommand) => void;
+  onSetTaskManagerWorkspaceMemberRole: (command: EnsureTaskManagerWorkspaceMemberCommand) => void;
+}) {
+  const membership = data.memberships.find((item) => item.clientId === client.id && item.userId === user.id);
+  const protectedUser = user.id === "user_root" || membership?.role === "client_owner";
+  const basePendingValue = pendingAccessAssignments[accessCellKey(user.id, service.id)];
+  const baseAssignmentValue = basePendingValue ?? accessAssignmentValue(cell);
+
+  return (
+    <div className="service-content-modal-layer" role="dialog" aria-modal="true" aria-label={`Operational Core доступы ${user.name}`}>
+      <article className="service-content-modal admin-entity-modal task-access-modal">
+        <EntityModalHead eyebrow="Доступы → Operational Core" title={user.name} onClose={onClose} />
+        <div className="task-access-summary">
+          <InfoLine label="Клиент" value={client.name} />
+          <InfoLine label="Сервис" value={service.title} />
+          <InfoLine label="Пользователь" value={user.email} />
+        </div>
+
+        <div className="task-workspace-access-list">
+          {workspaces.length ? (
+            workspaces.map((workspace) => {
+              const role = getTaskManagerMembershipRole(data, client.id, user.id, workspace.slug);
+              const pendingKey = `${client.id}:${user.id}:${workspace.slug}`;
+              const pending = Boolean(pendingTaskManagerMemberships[pendingKey]) || basePendingValue !== undefined;
+              const value: OperationalCoreRoleSelectValue = pending
+                ? "pending"
+                : baseAssignmentValue === "deny"
+                  ? "deny"
+                  : taskManagerRoleToAccessAssignment(role);
+
+              return (
+                <section key={workspace.slug} className="task-workspace-access-card">
+                  <div className="task-workspace-access-card__head">
+                    <div>
+                      <strong>{workspace.name ?? workspace.slug}</strong>
+                      <small>
+                        {workspace.slug}
+                        {workspace.isPrimary ? " · основной workspace" : ""}
+                      </small>
+                    </div>
+                    {protectedUser ? (
+                      <AdminStaticPill>{accessAssignmentLabel("admin")}</AdminStaticPill>
+                    ) : (
+                      <NodeDcSelect
+                        className="admin-table-select-wrap"
+                        triggerClassName="admin-table-select-trigger"
+                        value={value}
+                        options={operationalCoreRoleOptions}
+                        label={`Роль ${user.name} в ${workspace.name ?? workspace.slug}`}
+                        minMenuWidth={180}
+                        disabled={pending}
+                        onChange={(nextValue) => {
+                          if (nextValue === "pending") return;
+                          onSetUserServiceAccess({ userId: user.id, serviceId: service.id, value: nextValue });
+                          onSetTaskManagerWorkspaceMemberRole({
+                            clientId: client.id,
+                            userId: user.id,
+                            workspaceSlug: workspace.slug,
+                            role: accessAssignmentToTaskManagerRole(nextValue),
+                          });
+                        }}
+                      />
+                    )}
+                  </div>
+                  <div className="task-project-access-note">
+                    <strong>Проекты</strong>
+                    <span>Сейчас наследуют роль workspace. Точечные роли проектов подключаются следующим Project API-адаптером.</span>
+                  </div>
+                </section>
+              );
+            })
+          ) : (
+            <div className="access-empty-state">
+              <strong>Workspace не привязаны к клиенту</strong>
+              <span>Откройте карточку клиента и выберите Operational Core workspaces, после этого здесь появятся назначения.</span>
+            </div>
+          )}
+        </div>
+
+        <div className="service-content-modal__foot">
+          <Button variant="secondary" surface="modal" type="button" onClick={onClose}>
+            Закрыть
+          </Button>
+        </div>
+      </article>
+    </div>
+  );
+}
+
 function AccessCellControl({
   cell,
   active,
@@ -2358,6 +2612,7 @@ function AccessCellControl({
   busy = false,
   onSelectCell,
   onSetAccess,
+  onOpenDetails,
 }: {
   cell: AccessMatrixCell;
   active: boolean;
@@ -2365,9 +2620,37 @@ function AccessCellControl({
   busy?: boolean;
   onSelectCell: (cell: AccessMatrixCell) => void;
   onSetAccess: (value: AccessAssignmentValue) => void;
+  onOpenDetails?: () => void;
 }) {
   const isPending = pendingValue !== undefined || busy;
   const assignmentValue = pendingValue ?? accessAssignmentValue(cell);
+  const cellClassName = cn(
+    "access-cell",
+    onOpenDetails && "access-cell--modal",
+    cell.effectiveAccess.allowed && "access-cell--allowed",
+    !cell.effectiveAccess.allowed && "access-cell--denied",
+    cell.effectiveAccess.source === "exception" && "access-cell--exception",
+    isPending && "access-cell--pending",
+    active && "access-cell--active"
+  );
+
+  if (onOpenDetails) {
+    return (
+      <button
+        className={cellClassName}
+        type="button"
+        aria-busy={isPending}
+        disabled={isPending}
+        onClick={() => {
+          onSelectCell(cell);
+          onOpenDetails();
+        }}
+      >
+        <strong>{isPending ? accessAssignmentLabel(assignmentValue) : accessCellTitle(cell)}</strong>
+        <span>{isPending ? "Сохраняем..." : sourceLabel(cell.effectiveAccess.source)}</span>
+      </button>
+    );
+  }
 
   return (
     <NodeDcSelect
@@ -2381,14 +2664,7 @@ function AccessCellControl({
       trigger={({ open, toggle, setTriggerRef }) => (
         <button
           ref={setTriggerRef}
-          className={cn(
-            "access-cell",
-            cell.effectiveAccess.allowed && "access-cell--allowed",
-            !cell.effectiveAccess.allowed && "access-cell--denied",
-            cell.effectiveAccess.source === "exception" && "access-cell--exception",
-            isPending && "access-cell--pending",
-            active && "access-cell--active"
-          )}
+          className={cellClassName}
           type="button"
           aria-expanded={open}
           aria-busy={isPending}
@@ -2867,8 +3143,8 @@ function sectionTitle(section: AdminSection): string {
 }
 
 function accessCellTitle(cell: AccessMatrixCell): string {
-  if (!cell.effectiveAccess.allowed) return cell.effectiveAccess.source === "exception" ? "Deny" : "—";
-  return cell.effectiveAccess.appRole ?? "allow";
+  if (!cell.effectiveAccess.allowed) return cell.effectiveAccess.source === "exception" ? accessAssignmentLabel("deny") : "—";
+  return accessAssignmentRoleLabel(cell.effectiveAccess.appRole);
 }
 
 function accessAssignmentValue(cell: AccessMatrixCell): AccessAssignmentValue {
@@ -2883,6 +3159,11 @@ function accessAssignmentLabel(value: AccessAssignmentValue): string {
   return accessAssignmentOptions.find((option) => option.value === value)?.label ?? value;
 }
 
+function accessAssignmentRoleLabel(role?: ServiceAppRole | null): string {
+  if (!role) return "—";
+  return accessAssignmentLabel(role === "owner" ? "admin" : role);
+}
+
 function accessCellKey(userId: string, serviceId: string): string {
   return `${userId}:${serviceId}`;
 }
@@ -2897,6 +3178,12 @@ function accessAssignmentToTaskManagerRole(value: AccessAssignmentValue): TaskMa
   return "unset";
 }
 
+function taskManagerRoleToAccessAssignment(role: TaskManagerWorkspaceMemberRole): AccessAssignmentValue {
+  if (role === "admin" || role === "member") return role;
+  if (role === "guest") return "viewer";
+  return "unset";
+}
+
 function sourceLabel(source?: AccessMatrixCell["effectiveAccess"]["source"]): string {
   if (!source) return "—";
   const labels = {