You want to know these Hotkeys.
These are the hotkeys that every Pro MoGrapher has internalized. They are the super time savers, the ones that will take care of tedious tasks and wasted time mousing around. If you're looking to take your speed in After Effects to the next level commit this list to memory, practice these keys until your fingers seem to move into position on their own. Become a Hotkey Ninja. If you want a neat and tidy list of all of these hotkeys grab the PDF Quick Reference Sheet by becoming a VIP member at the bottom of this page.
The Hotkeys Every Pro Knows.
Expand All "Non-Default" Properties UU
A quick double tap of the U key will reveal all of the "non-default" properties on a layer, including any expressions. Be warned, this list of properties can get long, but it beats twirling down tons of arrows by hand.
Quickly Add Markers to the Timeline
* (Multiply) On Number Pad The * (Multiply) key is great for adding markers to your layers on the fly. Many people use it to mark out beats in audio where important things need to happen. If you want to leave a comment attached to your marker alt + * will bring up a dialogue box for you to do just that.
Precompose Your Layers
Cmd + Shift + C Go ahead and Precomp as many layers as you want with this key command. It brings up the Precomp dialogue box so you can make short work of this common task.
Easily Move Layers
[ & ] (Left Bracket & Right Bracket) The [ (Left Bracket) key will move the beginning of any selected layers to the current time. The ] (Right Bracket) will move the end to the current time. These are great keys to remember for lining up a group of layers at a specific time. No more dragging things around!
Pairing up alt with either of these keys will trim your selected layers to the current time.
Move From Work Area Beginning to End
Shift + Home Shift + End This pair is very easy to remember. If you want to jump to the beginning of your work area use Shift + Home,leaving the Shift + End key to take you to the end.
Scale Layers to Fit
Cmd + Opt + F This Hotkey will center and scale any layer that you have selected to fit the current Comp. If you find that hotkey useful try out Opt + Shift + Cmd + H to center and fit your selected layers to the Comp Width, and Opt + Shift + Cmd + G to center and fit to the Comp Height.
Making, Showing, and Hiding Guides
Cmd + R This set of hotkeys is incredibly useful for doing work that requires you to line things up precisely. To make guides you'll want to use Cmd + R to bring up the rulers at the top and bottom of the Comp Viewer. You can then click on the ruler and drag out a new guide onto your Comp.
To quickly toggle your guides on and off you'll need to use Cmd + ; (Semicolon).
Use Cmd + Shift + ; (Semicolon) to on and off the ability to snap to guides.
So you don't accidentally grab a guide and move it you can lock (or unlock) your guides using Cmd + Opt + Shift + ; (Semicolon).
Viewing the Safe Zones
' (Apostrophe) If you work with broadcast TV clients you may be asked to work with Title / Action "Safe Zones", so knowing this hotkey will be to your advantage. To quickly toggle them on and off use the ' (Apostrophe) key.
Different Viewer Resolutions
Cmd + Shift + J Leaving your Comp viewer at full resolution all the time can really slow things down. Cmd + Shift + J will set your resolution down to half. You can get to quarter resolution using Cmd + Opt + Shift + J. If you want to go even lower, use a custom resolution. You can switch to that with Cmd + Opt + J.To return your Comp to it's full resolution glory use Cmd + J.
Hold Alt Prepare to have your mind blown. If you need to replace a layer in your timeline with a different layer do this:First click on the layer you want to replace in the timeline. Next grab the layer you want to replace it with in the Project panel while holding the alt key. Still holding alt, drag the new layer on top of the old one and release it.
BOOM! Your layer has been replaced.
You are now a Hotkey Ninja.
You can navigate the most brutal of timelines, Precomp on the fly, mark out audio, and impress your broadcast clients with your title action safe knowledge. Before you go don't forget to pick up that handy PDF cheat sheet with all of the hotkeys you learned, just in case one slips your mind.
The Hotkeys the Pro's KnowDownload