For what it's worth the good old Icom 421 is either a case of "lift flap, press & hold" for a generic "help", or:
(scroll down 4 options)
<scroll to find nature of distress>
then hit & hold red button.......
So yes, if I felt I had tome to tell the CG that I was on fire, I could, but it's not the quickest set of menu selections to get to the setting, and with all the scrolling, during a real life a situation I could see an overshoot on the scroll being a realistic possibility.
And before anyone moans at me for loosing them training business, the manual is avaialble for all to read on the Icom website....