mScrub allows you to easily scrub the timeline and navigate thru keyframes with the mousewheel.
Only for 3dsmax 2013+
Press and hold SPACEBAR
Wheel Moves back and forth 1 frame
CTRL + Wheel Moves 10 frames forward or backwards
SHIFT + Wheel Moves to next or previous keyframe.
Release SPACEBAR and youre done.
This thread was moved here dont know why, it was originally posted in the News section. Sorry for the double post and I cant really understand why it was moved here without any notice.