Creating composition-time markersComposition-time markers appear on the time ruler in the Timeline window. After Effects automatically numbers them with a single digit that reflects the order in which you add them. You can place up to ten composition-time markers within a composition. If you remove a marker, the other markers remain numbered as they were. To add a composition-time marker:
Do one of the following: ![]() Note: If the number you press is already used by another composition-time marker, After Effects does not create a new marker. Instead, it moves the existing marker with that number to the new position. To move a composition-time marker:
Do one of the following: To snap the current-time marker or layer duration bars to a marker: Press Shift as you drag the current-time marker or a layer duration bar. To remove a composition-time marker: Drag the marker onto the time-marker button ( |