Hm, a tutorial for Morphing Clothes is the one side. This is a small region to be overlooked in a simple manner.

But doing a tutorial for PFE or the same for PoserRuntimeOrganizer is a bit of rewritting a book like "Secrets of figure Creation with Poser 5", what I recommend best or it's P6 variant. Despite of the old fashioned title, these are absolute actual. Even P8 has not really much new stuff for these structural things. And if having something new it's a question if to use this while wanting to have a compatibility for older Poser versions or with D/S.

Though a short explanation of PRO could be a good lecture for Poser developers. For example why it is absolutely silly to push conforming clothes including their object into the props folder and giving them the wrong pp2 extension instead of cr2. And more such original crap ... :-(

But a complete tutorial for PFE isn't really doable as such. It would be a compendium of Poser as such ... ok, 80 % ...
Only small parts of actual special interest can/should be done by a tutorial cause tuts are living from there relative short form to be written, read and used quickly according to a specific situation.