Anyway, I think the easiest way to fix this mess in Poser 5 would be not to allow cross-figure-linking at all, which would of course mean full body morphs would not work as intended No need for that. All we need is one of these:- (1) Poser 5 to ignore a slaved morph's master model name and to look for the master channel in the model specified by the colon-and-number at the end of the part name, same as when a part looks for its IK-parent. That colon-and-number to be automatically updated accordingly when the model is loaded onto stage, by the same mechanism that keeps those colon-and-numbers updated elsewhere when a model is loaded onto stage. (2) Poser 5 to update the slave's master name correctly when the model is loaded onto stage, so there would be no need for fudges such as text-editing and null-loaders.