Override "setup" method for button translation in class "imageMapCreator"

I need to translate the text of the various buttons "Undo", "Redo", "Delete", "Generate Html", "Generate Svg", "Save", etc and hide some of them. How could I override the private configuration method for this and configure it to my liking?

On the other hand, would it be possible to show the id or the title of the selected area within the polygon, circle, rectangle, etc.?