Press "O" to start a video export of a coaster. Due note that it may take some time to record the coaster and it takes up a lot of disk space. There are video export options in the "Options" tap of NoLimits 2 as well.
Now, if you are using NoLimits 1, I'm a bit rusty on that because it's been quite awhile since I played that simulator. I'd imagine that the video export controls aren't much different.
Storm Chaser | Intimidator 305 | Lightning Run | Twisted Colossus | Maverick | El Toro | Millennium Force | Xcelerator | El Loco | Magnum XL-200
Coaster Count: 154 - Last Credit: Ragin' Cajun (Six Flags America)