This is an indispensible tool for content creators. I've used this utility ever since the early days and it's helped me progress my own models in terms of functionality.
Although I now count myself as an experienced modeller there is now way I could manually edited Poser files  to introduce easi-pose but also the numerous dial setting processes that have to be undertaken to get a model ready for market. 
EPU has literally saved me hundreds of hours of hand editing with a logical and reliable functionality.

With this new upgrade Ajax has added some pretty neat functionality that speeds tasks even more (check out the new symettry options) Also he's tackled some of the really cool new features of P6/P7 such as morph dial grouping and the even more exciting  non-linear morph application (dependant parameters) This is a difficult concept but basically allows morphs to behave in a non-linear way _ so for example a 'breathe' morph could go through a full cycle of inflate/deflate as the dial is turned in one direction. We are just begiining to work out ways of using this tecnique!
Be ahead of the game with this utility!

Noggin