[racket] what kind of Racket editor operations would you like to see?

What kind of Racket editor operations would you like to see?

With the forthcoming Emacs mode for Racket, called Meow, I intend to 
provide a conventional typing interface and also some sexp-oriented 
operations that people can adopt incrementally if they want.  
("meta-uparrow", to move up a sexp level, is one example of a sexp 
operation people can adopt at any time, independent of other 
operations.)  I'd be interested in ideas how to better accommodate 
people becoming power-users in small steps like this, rather than a 
modal switch from dumb-editor keys to power-user keys.

I'm also interested in ideas for language-specific operations, such as 
Quack's command to toggle a form between "(define (X ...) ...)" and 
"(define X (lambda (...) ...))".  Different people will want different 
of these operations, and I probably can't predict most of them.

Meow has more precise parsing of the buffer than Emacs modes normally 
do, and so doing some things smarter should be easier: 
http://www.neilvandyke.org/weblog/2011/06/#2011-06-20

I'm not going to be implementing this immediately, nor discussing it in 
detail, but it would be nice to have a list of ideas ready for when I do 
have another free weekend to work on Meow.

-- 
http://www.neilvandyke.org/