We have a Remove Access button that uses the default Remove Access action. After selecting a user you're taken to the Remove Access panel.
How do you limit what is listed on this screen? It seems to be just a dump of all the selected user's access. We want to limit the groups to certain OUs.
Not sure if you can modify that.
Consider creating a new form (which will present only a subset of access rights you can remove) and then creating a new button which will activate this form