Switch user to another cloud

My org has multiple Zscaler clouds for different purposes. I am currently in need of moving users from one cloud instance to another. I have tried simply reinstalling the Zscaler App over with the new cloud (both use the same IdP) but unfortunately that did not work. Has anyone been able to do such an item or have any other ideas for me to try? I really do not want to have to uninstall and reinstall the application.