To Open a Block Definition for Editing (Block Editor)

1. Click Drafting tab > Block panel > Block Editor.
2. In the Edit Block Definition dialog box, do one of the following:
   • Select a block definition from the list.
   • Select <Current Drawing> if the drawing is the block definition you want to open.
   • Edit the block in the block editor.
   • Click Save to save the changes to the same block. Save block definition dialog box opens up. Click Redefine Block to update the existing block

Note: You can quickly open an inserted block reference in the Block Editor by double-clicking it.