Hi Dave,
I had my doubts thinking you meant a cell --
;
maybe one of these depending on situation
-- mouse pad
-- Arrow UP (or other arrow) -- strictly a single cell selection
-- Enter, Arrow Up (or other arrow)
-- F2 (but you are then in Edit mode)
-- F2, Enter, Arrow Up (or other arrow)
What exactly do you want to do (or not to do), other than never have
the keyboard leave your hands, so you don't get bitten by a mouse.
But from your reply, I see you said button not cell.
If the button is highlighted, isn't it selected and you would just hit
enter; otherwise, if you are on a button such as within a dialog
you would hit tab then enter.
Musophobia -- fear of mice
vetnet -- Rodents --
http://netvet.wustl.edu/rodents.htm