Thanks, Matt! The idea worked.Tried the IF formula but couldn’t get it to populate correctly, then tried JOIN_TEXT and COMBINE_STRINGS to simply write out the name. After a good amount of trial and error, finally got it to populate the UI field properly. Making the tab name equal to that UI field is working fine - thanks for that suggestion.
I used COMBINE_STRINGS("Identity ",{{fieldName}}) as the formula for the UI field.