I recently created a new workspace and now have the following setup

primary workspace  - WS1
new workspace - WS2

global form fields for category I have the following options:
cat1 with no subcategories
cat 2 with sub1, sub2, sub3 subcategories
cat 3 with sub4, sub5, sub6 subcategories
cat 4 with sub7, sub8, sub9 subcategories

for workspace WS2 - is there a way to only display categories cat1 and cat3  when a new ticket is being created manually?
for workspace WS1 - is there a way to only display categories cat2 and cat4  when a new ticket is being created manually?