Driver_Motion_Clip : DriverBlockController Prior to 3ds Max 2022 this class was called Master_Motion_Clip.
Driver_Motion_Clip - superclass: DriverBlockController; super-superclass:MAXWrapper - 1:1 - classID: #(1395269688, 1791834559)Aliases:
Driver_Motion_Clip DriverClipProperties:
<Driver_Motion_Clip>.Blend Float default: 1.0 -- animatable; float