The lack of summary for versions made me create this formula:

I am trying to get a functionality to have a boolean checkbox which will be FALSE for all other versions, but the one I have selected for the same time period, else - all TRUE. Time periods have this "All periods" summary which can be used in SELECT.
Do you guys have any idea to achive the same any other way?
If Anaplan could have VERSIONS.All versions my formula could look much cleaner and more flexible:
Selected version OR NOT (Selected version[SELECT:VERSIONS.All Versions OR Selected version[SELECT: TIME.All Periods])