Create group rule in okta to only add users but not deassign them

Hello there is a group a and a group b

How could I add a group rule in okta so that users who are in group a, are added to group b but if one of those users are removed from group a they are not automatically removed from group b.

It seems like a simple thing to do but I have not found the answer

With IF isMemberOfAnyGroup("IDofGroupA")

Then assign to Group B

It will automatically add the user to group b but also will delete it if it is no longer in group A

How can i do it, if it is even possible?

Thanks :slight_smile: