Keyboard Shortcut for automation write mode?

Hey guys,
   Sorry if this is posted elsewhere, but I can't find it.
 
   Is there a keyboard shortcut that will change the automation write mode of a selected track?
 
   I've been using a faderport, and it's working great, except for the fact that I have to mouse over to the track pane of the inspector if I want to switch to latch or overwrite mode. I've looked in the documentation, but there doesn't seem to be a shortcut for that. Am I missing it?
 
 
Edit: Should've mentioned: SOnar X3e, Win7x64