Two things made Poser 4 a dreadful program to work with: the awful library system and the terrible material editor. The fact that there was no way to copy material settings from one object to another was really unbelievable.

I got round it by never touching the P4 materials editor and doing all the materials and textures in Bryce, but there was no escaping the dreadful non-hierarchical library.

Poser 4 - not missed at all. Yes, you could do fun things with it, but it was really badly designed as a program.