Dr.: If you input 236(or 236236) and enter NS(or DNS) and touch nothing else Ω will do her little step forward, ducking in the process then stand up as part of the animation and recovery. I don't remember the exact number of frames into the animation the point is(I had it for sophie in an old post, but I don't recall the method to determine it), but an input by the player shortly after that point does not get counted as being made in the stance and cancels the rest of the NS recovery. The cancel goes into whatever the input would make her do from FC. So if you input 236 > wait a short period > 236, for example, she would NS and before standing NS again(technically FC NS the second time). You could also 236 > wait the same period > B and she would do the first part of NS, then stop and perform WR B. Mixing throw with a decent speed launch option out of that cancel can be a decent way to initiate mix-up at range against an opponent who you don't think will attack and that locks onto G when they first see NS/DNS.
This is separate from 2362*8, the stance Nemesis Step Sidestep (NS~S) which can also be cancelled into another NS, but traps her in a rather long animation that is comparatively easy for opponent to react to. I'm not sure what you mean by 236 88 236, but if she sidestep during the motion, it was not the "wavedash" to which I was referring.