Automatically delete ILTs after they've run?

There’s no way to delete post session via system, and I would be concerned with the loss of learning history in doing so?

you could technically easily build something with connect or the apis directly to do this if you really wanted to, but I don’t understand why you really want to delete. 
 

For scheduling, you might want to look into the CSV uploads if you are sticking to the front end gui, it doesn’t save you all the clocks but helps a bit. At that scale I would highly encourage you to engage a consultant or IT to make you a system for scheduling with the apis, it can be done fairly easily by someone comfortable with them, and saves not just time but the human error of doing that many manually. 

So the more you describe here the more it sounds specialty to me. I would also guess with this new info that you don’t actually want it deleted after it runs, but more after you have reported and backed up? Seems like a fairly easy custom api tool buildout, run your report and then feed it into the tool to delete each unique session within the report. 
 

that being said, this still cuts out a lot of abilities like pre-reqs, user summary areas, etc. and such since you’ll lose the completions. There’s a couple threads around for using CSS to change the width of that column if that is the real concern. Also, remeber that you can sort the list by date which often helps too.