To Save a Block as a Drawing (Block Editor)
Click
Insert tab
Block panel
Block Editor
.
Find
Click
Block Editor tab
Open/Save panel
Save Block As
.
Find
In the Save Block As dialog box, enter a name for the new block definition.
Select the Save Block Definition to Drawing File check box. Click OK.
In the Browse For Drawing File dialog box, click Save.
Related Concepts
About Modifying Block Definitions
Related Tasks
To Save a Block as a Drawing File
To Save a Copy of a Block with a New Name (Block Editor)
Related Reference
Commands for Basic Blocks