I've recently been working on a strata-coaster similar to Kingda Ka and Top Thrill Dragster. I'm planning on also script a lot of features into this ride. I've currently got a few done as of right now, and here a small preview of them.
Random roll back & launch reset:
(The fact it rolled back every other time at the start of the video is entirely coincidental, the chance of a roll back in this video was 1 in 2, I've since changed it to make it a lot less frequent)
Launch catch car:
(I'm not quite sure why, but for some reason the catch car doesn't stop properly at the end of the launch track, It's scripted in a way that it's supposed to, but it doesn't and I can't figure out why)
When I finish the coaster, I plan on fine tuning the scripts/making them a bit more user friendly (the catch car one, in particular, since they appear on all accelerators) and releasing them properly for other people to use.