Bring Adobe Animate's insert frame functionality in After Effects

In Adobe Animate, you can place the time marker on a frame and press F5 and it will insert a frame on your timeline, pushing everything else one frame forward. I'd LOVE to see something like this brought over to After Effects. I often need to shorten or extend something, but adjusting all my keyframes manually is tedious at best. In addition, it would be nice to be able to insert a frame on everything if nothing is selected in your timeline or insert frames only on selected objects in your timeline. Similarly, removing frames would be equally as helpful.