Lock and Unlock
Protect objects from ordinary selection and editing, then unlock them from the Outliner or layer controls.
Locking helps prevent accidental edits while keeping an object visible. An object can also be protected by a locked group, layer or class. If unlocking one object does not make it editable, check the containing group and the visibility and lock filters. Locking is an editing aid, not an access permission.
Lock the selection
Select the objects and choose Lock, or use Ctrl+L (Mac: Cmd+L) to toggle the selection’s lock state. Group controls can lock a whole group.
Unlock a protected item
Use Outliner to find a locked object or group and choose its unlock control. Unlock all makes locked objects available within the current editing scope; check which group is open before using it.
Check layer and class locks
Open Filters to inspect Layers, Surface classes and Tags. A lock at one of these levels can still prevent editing after the object itself is unlocked. Hidden items also need to be shown before ordinary canvas selection.
Continue editing
Return to Select and try the intended edit. Use Undo if you changed a lock state by mistake. Closing a group changes the selection scope; it does not remove the group’s lock setting.