Jag, either in freestuff or in the python forum you should be able to find scripts to turn off filtering for an entire scene instead of doing in one material at a time. Freestuff gave an SQL error or I would have tried to find you a direct link. I use the one by SVDL as you can select a single figure, or prop or the whole scene.

Gary

"Those who lose themselves in a passion lose less than those who lose their passion"