Thanks a ton! Your script saved a lot of my time already and not just once, - in my case it is most useable in cases when lots of some 3rd party program made models are involved (infraworks made scenes or lots of google warehouse models for instance), some old/vray/heavy scene conversions or even in case of some forestpack presets material tweaks.
Only one thing could make me happier (and I think not only me)) if there would be a possibility to automatically add controllers only to those of the selected materials whose options have some values for the selected parameter already (more than 0 for some or less than 1 for others).
Typical usage scenario:
For instance some forestpack preset materials (or any other even non preset ones after consolidation) can contain quite a few slot (often more than 20) multimaterial with all those twigs, leaves and branches, etc. in it.
Some of those materials already contain let's say some translucency values which are set way too high (often around 0.5) by default and and are in need of some tweaking, while others (branches etc) do not contain any positive value at all.
Selecting only those translucency containing leaves/branches materials manually can be quite tedious for that material can become quite stretched/long (sometimes it can be even as ridiculously enormous as this
http://clip2net.com/s/3eKUk8i ) in slate editor and selecting something more precise can be quite hard even on large screens, yet selecting all of them at once and adding translucency or any other controller only to those materials which already contain some positive values for that same controller would be a breeze and of course reflection, refraction etc. could be a lot easier to tweak as well
Of course if it is possible and not too hard to implement - I am happy even as it is and your wonderful script has became one of my most frequently used ones - thanks again!
