[Solved] modifying clips with automation envelopes - can it be done?

I might be missing the point here, but use the copy / cut / paste options.
the "Special" menus have extra features for automation.
other then that, use the track filter select clips and drag the ends of the clips.

I think its not as much the point as it is the simplicity of the answer.
clips are not locked once automation is done. you just need to change the filter to clips again.
 
did you try to change the track filter to clips yet ?
you can do anything you normally can with a clip after automation is done.
just switch back to clips and its like any ordinary clip.
you can drag do what ever.
 
you might want to try opening an automation lane vs doing automation right on the track.
this free's up your track clips to still edit freely while still being able to automate it in realtime. 
 
 
I used to do all my automation right on the clips (probably like you do).
but once sonar came out with the automation lanes, it blew up my whole way of working, it literally opened up a whole new door.
 
as seen here in this video
https://www.youtube.com/watch?v=Mn5XmLRARQ8
 
and this one here
https://www.youtube.com/watch?v=jfdJFl5PJ6Q

WoW!! - thanks for that...that makes it way WAY easier to get things done...and it's been there since X2!!!