I use PFEdit on windows/dos platform.  It's very easy to create standard the
csound "templates" that you're talking about.  Also you can map the function
keys to start and pass the file.CSD to any version of Csound you have installed!
PFedit is my Csound "shell" - it's a small FREE editor that's very easily
customisable with straightforward help.

You can get it at:  http:/www.lancs.ac.uk/people/cpaap/pfe

!M