[MlMt] Keyboard shortcut/binding to search for string within "Common Headers or Body"?

[Yuvi Zalkow]

I'd like to have a quick, keyboard-centric way to perform a search for 
an email using the "Common Headers or Body" search...

I'm successfully using the keyboard binding for "searchAllMessages:" but 
it doesn't look like there is a way to fine-tune the search any further 
using a keyboard binding...

Is that correct?

Any plans for more keyboard-centric control in this realm with a future 
release?

Overall, I'm loving this keyboard binding feature!...