I wouldn't bother fragging the xenia, just be patient and it will spread everywhere, i.e. self-fragging. As for the toadstool, you can just cut off a frag. If your tank is healthy it will heal no problem. Use either a needle and thread to attach the frag or some bridal mesh/rubberband.
Thanks but where should i cut the toadstool (on the head or stalk area) and if i cut the stalk and attach the head somewhere else will the stub grow a new heaD?? also my xenia is in an annoying area now with 4 branches full, was wondering if i could just cut one of the stalks from the bottom and attach it somewhere else?