Normal:
x + 1 --- toggle bra
z + 1 --- toggle panty
c + 1 --- toggle transparency

If you installed GUICVM 1.4.1 or higher,
You can check key bindings by GUICVM.

Press F4, or move mouse cursor left top of window & click appered icon.
then click swimsuit icon.

https://www.loverslab.com/files/file/20372-guicvm_base_package_v10zip/


Caution:
If you don't want to use GUICVM, Please disable or delete "sub-gui-text.ini".
