Should have made it a bit more clear. Gentle rides, Thrill Rides, Water Rides
Here is a comparison of one of my tabs from version 57a2612 and 40cea0e
Example: Dolphin Show is currently in my park map. Works and is fine. Can't add another in 40cea0e cause its just not there anymore in the tab.
Just checked build 68fac3b, don't see the missing ride in build window like in 40cea0e.