Hi Mate, fantastic program - thank you.
Have you considered a method of changing the hair bones for hats? right now I have to use your tool, then go into xml then back again which takes a bit of time.
Details: [How-to] Fix Addon hats
Only 3 options you would need are 0, -0.5 and -1 i guess for normal, pushed back and removed.
<expressionMods>0 0 0 0 0</expressionMods>
<expressionMods>-0.5 0 0 0 0</expressionMods>
<expressionMods>-1 0 0 0 0</expressionMods>