Hi John,
If you open up one of your existing custom templates which you created (e.g. open your first attempt) then make necessary edits, and go to LAYOUT > Save As Template > either give it a new name or if you decide you want to overwrite your original template, then give it the same name as the existing one. MapInfo Pro will ask if you want to overwrite the existing template.
![ScreenHunter 279]()
Is this what you were trying to do?