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Material Proxy Variable Sliders

This rig/script allows you to add a slider to a model.
The slider, if set-up correctly, allows you to change a proxy variable in a material, kinda like Material Overrides, but better.
You can animate the slider to your likings, and even choose to create a vector group for things like $color.

Now featuring remapable sliders! (Currently only Non-Vector ones)

Right now you can't delete sliders, and some variables ($frame for example) can't be changed, but that's on Valve's end.
There is an option to add all the materials that the script catches, but I'd be careful with that one.

The script is also heavily based off Doc's cloaking/color script, props to that guy.

You apply this script similar to a IK rig.

If you find any bugs, please let me know.

Includes:
sfm\animset\Proxy-Slider.py