I know this x431 launch wand does what your talking about :

Porsche Cayenne TPMS diagnose by X431 TSGUN

The one I have doesnt do the cloning as far as I know. Its for setting up new sensors only as far as I know. But I havent messed with that part enough to say for sure. What they did with the one I have is that they included with the scanner a cheap version to talk you into buying the fancier one. But I believe for what I will be doing I wont need it. If it turns out it will help when I replace the sensors on the crossfire one day I'll buy it and post about it.

Next weekend I was going to tinker with the tpms stuff on the crossfire more. This weekend Ive got servers coming in Im setting up and its my birthday today

Weather here is pretty screwed up so I dont get much outdoor time and there isnt a bunch of room in the garage right now. One day its in the 70's and the next its cold. Its 29 degrees outside right now while I'm typing this.