Yes, this is the way he could be used like the OP is suggesting, but I think it would come thru a permanent position change rather than sneak him in for a play or two to do a trick play.I look at it this way, if he is willing to be a Taysom Hill utility knife guy, then you can use him in Punt formation as protection, as an H-Back, on an end around -- and always have to worry that he's capable of throwing out of those formations -- then he would be truly a lethal addition to the offense.
That dude is making $10M/year -- so....there is that
If he could be a serviceable H-back OR "full back" (I can wish for that!) then yeah his "arm" might be used for a trick play, but I think the key would be he'd have to find a position he could log regular minutes in before "the trick play" thing would work.
Otherwise, you bring him in for one play and the whole stadium is on full alert that it could be a trick play.
As I mentioned up thread, the challenge for him would be beating out other players who were recruited to play the position he'd switch to.