I used a program called The Rename to add _INJ and _REM at the end of the inj/rem poses (before the extension! :) )and put them into a single folder, ie instead of Expressions INJ and REM I now have just an Expressions folder. I did that for V3, M3, S3 and Freak. Btw, the limit is 256 folders in a library, then you get the screwy effect. This is in Poser 4 and ProPack, Poser 5 allows folders in folders.