[plt-scheme] "Projects"

On Sep 27, Robby Findler wrote:
> The module browser has "ignore lib paths" option. Maybe it makes
> sense to either use that, or to change the module browser to match
> whatever seems best. Personally, my experience suggests that
> ignoring lib/planet paths and just do all relative requires will
> work well. Ie, don't restrict based on dirs.

I wouldn't mind seeing all the files I require in a module, so long  
as there is an equivalent to Emacs's C-x C-q to toggle the read-only  
state of a tab [buffer].  toggle-read-only helps me not damage code.