Remove from Working Set
()
Keyboard: REFSET
Removes an entity from the block that is being edited in-place. Before using this command, you must use Edit In-Place.
Enter an option [Add/Remove] <Add>: Choose Remove. (This prompt displays when using REFSET at the command line, not the menu.)
Select Entities to remove: Select the entities to remove from the block or external reference that is being edited in-place, then press Enter.
If you are done editing the block or external reference in-place, choose Close Reference.