Yes you can put a 2U Vertical enter key if you’d like. I also offer a new 1U Enter key so that you can make the most of the 15 possible keys of the right side block. You could also put a 2U horizontal key like backspace or num pad 0 Ins if you wanted. With the design of the Model F the 2U wide and 2U tall keys can go in any position of the right side block.
