8. Material room file selection: include a radio button to force Gamma to 1.0 (for bump map etc), and don't change it when a new texture is loaded.

(I just had to change 10 textures on a model, and for every bump map had to click "Custom Gamma value" and type '1' into the Gamma field even though the original texture was already set to 1.0. Grrr...

I was lucky it was only bump - might have had displacment, normal, tranparency and metallic (as a mask) in there as well. Once is an annoyance - multiple times on multiple materials is a serious hit to productivity.

Epi