Are there any better mechanics for pushing someone out of the timestream (for eventual retrieval or until they fall back in, down stream) than a thaumaturgical attack with a duration tacked on? Intended experience is infinitesimal elapsed time experienced by the target(s) and the target(s) fading out existence as far as the intervening time is concerned (unless the spell in cancelled early).

This is driving me a bit nuts, I see skills referred to by categories in several places, most importantly on page 174 under Skill Shuffle, but I can't find anywhere that is clear on which skills are in which categories, or even, which categories exist. On 174 we have:
Social
Knowledge
Physical
Perception
But there are several skills that seem to have mixed aspects (craftmanship, survival, weapons) and some that don't seem to fit under any of those (conviction, discipline, while they are mental they definitely aren't knowledge). Mostly this doesn't matter for Beast Change (though someone being more comfortable and focused as wolf, thus having a higher conviction or discipline doesn't seem unreasonable), but if a full up True Shapeshifter duplicates the well honed body of a master fencer, while they definitely don't get the weapon knowledge, should they be able to duplicate the other trappings?

I really hope I've missed a sidebar somewhere, but failing that, opinions, thoughts and other references would be greatly appreciated.