@AmbientShade, yes and no .. for Ajax's Easypose 2 at least..   While it does ERC, it also does geometry swapping, dial group creation, symmetrical slaving.    The geometry swapping was nice for me when I made a version of Melody(furry) and could swap out the hip to have a no tail patch (otherwise if you just hid the tail parts you had a big hole in her backside.) .. And it still works perfectly fine, since it's a stand alone program.

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Consider me insane if you wish, but is your reality any better?