What new or enhanced feature are you proposing?

On the Hotkeys tab of the Options window, provide a way for users to reset 
a particular action to its default hotkey combination, (which would be nice 
to be able to see before reseting to it). If that combination is currently 
assigned to another action, ask the user what to do. A "Restore defaults" 
button on that tab to reset them all would be good, too.

Actually, what do you think of this:

Insert a new "Default" column of buttons between Description and Keys. 
Rename "Keys" to "Custom". The default buttons' labels would always be the 
default combo for the actions, but each would only be enabled when that 
default wasn't already the combo in effect.

Clicking an enabled default button would reset the hotkey for that action 
to that default. The custom button would retain its current combo and stay 
enabled--it just wouldn't be the combo in effect anymore. Single-clicking a 
custom button not already in effect (which the user would know based on 
whether the default button were enabled or not) would put it into effect. 
Single-clicking a custom button already in effect would prompt the user to 
enter a new custom combo.


What goal would this enhancement help you achieve?

The basic ability to reset to default would allow me to roll back my 
unsuccessful attempt to set a hotkey to Win-PrtSc to whatever it was 
before. :-D

The specific mechanism I suggest would not only allow the user to reset an 
action to its default combo, but let them see what that default is before 
doing so. As a bonus, they could retain their most recent custom combo per 
action while using the default combo again for a while.