Locking and Unlocking Objects in the Workspace
Locking a workspace object gives it a read-only status in the workspace and in a CAD application session. The action is only available from an active workspace.
You may want to make an object read-only to:
• avoid inadvertent modification.
• reduce the number of times that the Conflicts window is presented for objects that are not intended to be modified.
• give the user better visibility into changes made implicitly by the CAD application (for example, unplanned or unexpected changes required during regeneration/rebuilding).
• prevent the object from being saved.
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Read-only object status is a property of the local cache, whether the workspace is online, offline, or portable. There is no notion of a locked object in the server-side workspace (which is viewed in standalone browser) or the commonspace.
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You can set the preference > > to set the workspace lock default to automatically lock all objects that are not being checked out during Add to Workspace and Checkout operations.
Locking Objects
To lock a workspace object:
1. Select one or more checked-in workspace objects (modified or unmodified).
2. Select > .
The object becomes read-only and is marked as such by a status icon 
in the General status column.
in the General status column.| | If a workspace object you are trying to lock has been modified in a CAD application session but not yet saved to the workspace, you receive a warning about the in-session modification. The object is not locked in session. |
Unlocking Objects
To unlock a workspace object:
1. Select a locked workspace object.
2. Select > .
The object General status icon for the locked state is removed.