feature request: retain scheduled time of done scheduled TODO's

[Brian van den Broek <broek@cc.umanitoba.ca>]

Hi all,

I have a feature request.

When marking a scheduled TODO as done, I generally want to retain the 
information about for when it was scheduled. I wish to do so so as to 
see how far ahead or behind I am from my planned progress. (I use 
deadlines for things that must be done dates and scheduling for 
planning when I will do something.)

At present, I am manually copying the active scheduled timestamp into 
the closing note and turning it into an inactive timestamp. It would 
be a boon were this able to be done automatically. Unfortunately, my 
lisp is far too weak to attempt this myself.

Apologies if I overlooked relevant bits of the manual and I'm asking 
for something that already exists. If so, pointers gratefully accepted :-)

Best,

Brian vdB