It would be nice to have an inbuilt function(s) that return an identifier (NTLogin for instance when the gallery is setup with windows auth) of the user running the app on the gallery.
Functions like - USERNAME(), DOMAINNAME() etc., helps.
I know that it can be achieved via the "__cloud:UserId" call , which is not officially supported by alteryx. It adds value if it is inbuilt within the product itself.
Regards,
Sandeep.