Cinema 4D Prime Animate Menu Timeline Menu Functions
Function available in CINEMA 4D Prime, Visualize, Broadcast, Studio & BodyPaint 3D

Trim Before / Trim After

At top: Initial state; at bottom: After applying Trim Before

Use these settings to delete all keys on selected tracks before or after the current time in the animation (i.e. the location of the Timeslider). Any keys located at the current time in the animation will not be deleted.