Cursor Position after enter

I'm trying to make a simple dart board scorer for my friends laptop to use at
home, fairly simple, but how can I set it up so after a score is entered in
position 1, then hit enter the cursor moves automatically to position 2, then enter, then position 3, then enter, position 4, enter, etc etc.
I am only an intermadiate user, so please explain carefully.
Thanks to all.