- Move by 5 keyframes : CRTL + Shift + ← or →
- Move a layer up or down : CRTL + ALT + ↑ or ↓
- Center the anchor point : CTRL + Double-click on the anchor point tool
- Adjust the size of your layer to that of the composition : CRTL + ALT + F
- Adding a marker to a layer : * or CTRL + 8 on MAC
- Change the type of your keyframes in one click : CRTL + ALT + CLIC
- Placing a position keyframe : Shift + Alt + p (t for opacity, r for rotation…)
- Adjust the length of the composition to the length of your work area : CTRL + Shift + X
- Atint the beginning or end of the selected layer : I or O
- Pre-compose selected layers : CTRL + Shift + C
If the Mac version is not written down, it's because it's the same, and if the shortcut includes the CTRL key, it should be replaced by ⌘.