Ok, imagine there is a classroom with 20 kids sitting on separate desks. Each desk has 5 buttons serving for answering, quizzes etc. I decided to do it the cheap way by wiring these buttons to certain pc keyboard letters and use Sub Setkey Application.Onkey "a", "MacroA" and so on for each possible letter, but the buttons are more than the letters on the keyboard, so I decided to use 2letter combination (with double contact buttons) which for the moment I plan to do it with Worksheet_change for the cell where I type the two letters but it is hard to do it without additional Enter or Tab or Right click I.o. to exit the Edit mode. It looks challenging, that's why I am asking the best ones..