BEXTEND [Express Tools: ACET]

AutoCAD Express Tools

Uses a block (or entities within a block reference) as a boundary to extend objects in a drawing.

Command: BEXTEND
Select edges for extend: Select block to use as the extending edge
Specify object to extend or shift-select to trim or [Fence/Crossing/Project/Edge/eRase/Undo]: Select object to extend

See also: BTRIM