Not sure about the first part of your question, but I'm good with pose/animation hacks.  The options offered by Paul's Reaction Tester are fairly limited.  If you're looking for in-game animations, use 
Decorgal's Sitting/Standing/Action hacks, and her Model Pose Hack for face overlays (expressions).  Aikea Guinea has two hacks 
HERE and 
HERE that have a lot of the standard animations, and Jaydee has EP-specific animation boxes 
HERE.  If you want non-game poses, GOS has a list of the various poseboxes 
HERE, but a lot of them are hit-and-miss as to quality and content.