BTRIM command
The BTRIM command use to trims objects with a block as a cutting boundary.
Command Access :
Command Entry : BTRIM
Menu : Express>Blocks>Trim to Nested Objects
Command line prompts as follow:
Select objects or <select all>: Select one or more blocks and press ENTER
Select the object to Trim or Shift-select to Extend or [Edge/Fence/Crossing/Project]:
Select object(s) or enter an option and press ENTER