Issue:

By default, the Block Break function is set to Wipeout as below figure shown. If you prefer it to be Break by default, you will need to make the adjustment manually.

How can I set it to Break by default?

Solution:

You can control the way blocks are broken using the system variable BLOCKBREAKMODE in ZWCAD.

To set the default method to Break, enter BLOCKBREAKMODE in the command line and change its value to 1,  which will make Break the default mode.