Universal button on every form?

Is it possible to format a Form template such that there's a URL embedded on every single form as a universal part of the template? (I don't care if it's a button, but I do care that I can format it for ease of looking at it). For now, I created a backend table for "Buttons", but have to manually input them for each of our forms.

It seems like if you do a button through Fields, you're going to have to then manually update that Field across every form in the table, but if I try to edit the Forms templates using the Forms elements, you're left with using the Text option with HTML, and that's limited. 

TIA!!