Capturing the ENTER Key

(削除) Is there some JavaScript that would capture the ENTER key so a certain button would be triggered? (削除ここまで)
I should have searched first. Looks like it's a work in progress.
runbasic.proboards82.com/index.cgi?action=display&board=question&thread=716&page=1

Now that buttons are a part of RB, are there any plans to include a Default Button similar to Liberty BASIC's Default Button?

Janet