I need to remove old block definitions and replace them with new block definitions. Right now, when i go to insert a block, the pull down at the top of the window gives me all of the old blocks. I want to see the new block names in the pull down box instead of the old ones. If i go to browse i can get to the correct folder but i do not want someone else in the firm forgetting to do this and inserting an old block. Is there a way to remove and replace the old block definitions with the new block definitions without having to create a new drawing template