A test block window is displayed to allow easy testing of the block definition while creating dynamic blocks.
The block definition does not need to be saved to test the edits made in the Block Editor. The test block window reflects the current block definition in the Block Editor. You can test the block without exiting the Block Editor.
The test block window automatically closes when you exit the Block Editor, open a different block from the Block Editor, or save the current block definition to a different name.
BTESTBLOCK, the window closes and a new test block window is opened.
Only one test block window can be open at a time. If a test block window is open and you enterMost AutoCAD commands are unchanged in the test block window except the following commands: