Installation for 3dmax 2013-2015 
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Close 3dmax if it is opened.

1) Copy images from folder "img" to path: 

Max 2013   --- C:\Users\*username*\AppData\Local\Autodesk\3dsMax\2013 - 64bit\ENU\usericons
Max 2014   --- C:\Users\*username*\AppData\Local\Autodesk\3dsMax\2014 - 64bit\ENU\usericons
Max 2015   --- C:\Users\*username*\AppData\Local\Autodesk\3dsMax\2015 - 64bit\ENU\usericons

2) Run 3ds max and run "AnimationEffectors_v1.0.ms" script
3) Script installed in category: "GregoryMaxScript"