[plt-scheme] Is it feasible to re-associate both a menu item and a key command to the same action?

I would like to display a popup message to the user whenever they try
to start the help desk from within DrScheme or they hit F1 rather than
perform the default action of starting the help desk.

Is this feasible?

Where would I start?

-- 
"Wisdom begins in wonder!"
http://www.wisdomandwonder.com/