Issue:

ZWCAD can only open one drawing at a time. If the user opens another drawing in ZWCAD, the current drawing will be closed.

Double-clicking different drawings in the folder will call out multiple ZWCAD windows.

Causes:

The system variable [SDI] controls whether we can open multiple drawings in ZWCAD.

Solution:

Enter command [SDI] and set its value to 0. Then we can open multiple drawings at one time.