How can I efficiently apply keyframes in Adobe After Effects using the copy and paste function?

To efficiently apply keyframes in Adobe After Effects using the copy and paste function, first select the keyframes you want to copy. Then, right-click and choose "Copy." Next, move the playhead to the desired time in the timeline and right-click again to choose "Paste." This will paste the copied keyframes at the new time, allowing you to quickly duplicate and adjust animations.