Paint.NET :: Putting Text On Lot Of Buttons

I have an Ergodex DX1 keyboard and I'm wanting to document the layout of the keys for the various games I use it with.  So, I need to generate up to 50 buttons with labels and then move and rotate them into position for each game.  I would like to put the key number really small in one corner, the keyboard key assigned to it, small, in another corner, and then the then the function within the game, larger, and close to the center.
 
I've built blanks for the buttons, with space for those three pieces of information.  But getting the text lined up time after time is a bit tedious.What is the easiest process for placing text consistently when dealing with dozens of buttons?
 
I envision something similar to a macro, that loads the blank and then positions the text tool for the first field, with some way to trigger the jump to the next field.  I suppose a macro for each field would be simple enough.