Haven't tried this myself, but if you're trying to limit the frame rate for effect purposes, then you might be able to accomplish a psudo-limited with the timescale option. Like:
If you're trying to halve the frame. Have a counter that changes from 1 to 0 (Or vise versa) every frame.
Set the time scale to 2 on 1's and 0 on 0's.
Basically, nothing happens on half the frames and twice as much happens on the others. Provided you've been using dt in the correct places.
You may be able to find a way to limit event sheets to every other frame doing something similar, but this I wouldn't recommend. In fact, I wouldn't recommend any of this to be honest.
The other option I can think of would be even more unstable, but you could make "cpu stressor" that would start adding junk to a scene if the frame rate was too high and delete it if it got too low.
EDIT: Just realized halfway through putting together a quick example of the first, that it would be frame skipping not limiting. Anyway, here you go: https://dl.dropboxusercontent.com/u/10316081/Construct/FrameSkip/frameskip.capxYarfapet2013-05-10 00:11:19