Home Key / numKeys Method in Expressions Key / numKeys Method in Expressions By Coding After Effects 0 100 Facebook Twitter Pinterest Linkedin ReddIt Email Tumblr Learn how to use the key and numKey works and to use it. Key and numKey are the homies and they can be your homies too! LEAVE A REPLY Cancel reply Please enter your comment! Please enter your name here You have entered an incorrect email address! Please enter your email address here Save my name, email, and website in this browser for the next time I comment.