Thanks for the explanation, Eric!
What I was talking about was when you just open KStars, then EKOS, and go to the scheduler tab. I.e., with no sequence etc. loaded. For me this looks like this:
The old versions showed todays (rather: tonights....) twilight limits where the red scribble is. I always check(ed) this when starting up to have an idea about available time. Or is there another place in kstars to get this info easily?