Data Management > Workspace > Workspace Operations > To Lock or Unlock a Workspace
  
To Lock or Unlock a Workspace
1. Click File > Manage Session > Server management. The Server Management dialog box opens.
2. Select a workspace from the Server Active Workspace section of the Server Management dialog box that you want to lock or unlock.
3. Click Workspace > Lock Workspace. The Creo application locks the selected workspace.
If the workspace is locked, then click Workspace > Lock Workspace to unlock the selected workspace. Before the workspace is unlocked, you are informed of the conflicts that may arise on unlocking the workspace.