It is my thinking that BODY is the device that is used to control the figure as a whole and it is probably hard coded that way. Fooling Poser about it may not be possible. I never thought to just change the name of valueParm to targetGeom. I would bet on the following if you opened a cr2 in Poser having done this first: When you save a pose, Poser will still not make a slot for channels from BODY i.e. no actor BODY:1 {channels{and thus no keys That when you save the cr2 as a new file, the valueParms go back to being valueParms, so in all likelyhood - when Poser opens the CR2 with the name change and sucks it into RAM, it changes it back then and is probably flipping you the bird. It does when you try to customize the master slot in ERC code from a CR2. Poser 5 does that too. What it might do for you: let MM4 see the valueParms as morphs, and allow batch operations without messing with the actual channels in BODY. The thing about it is - when you are comfortable doing this level of stunting, you are only messing with shortcuts. You understand what you are doing. The feeling I get is that most users view openning a library file in a text editor as something akin to mixing the biniary agents in a VX shell. It still does not help one who asks "I have a character I would like to distribute, how do I do it? By the way, what is a morph?"