Is there a Ribbon Menu Tab Change Event in Microsoft VBA?

I have developed a Global Template in Microsoft Word, a .dotm that sits in the user's AppData\…\Word\STARTUP folder, so it gets loaded every time the user launches MS Word.  The .dotm creates a custom tab in the Word ribbon menu, a toolbar containing numerous automation macro buttons.

I need to do certain checks each time they use the global template, such as making sure they have the latest version, etc.  I am currently triggering these checks by way of the RibbonOnLoad event.  Problem is the ribbon loads when the user first launches the Word application.  

I would rather trigger these checks only when the user switches to my custom tab. Is there a Word VBA Event that fires when the user changes to a certain ribbon menu tab?

My research suggests there is no such event.  But I want to make sure.  If not, is there a workaround to create this same functionality, so I don't have to call the checks at the beginning of every single macro?

Thanks!