How to Duplicate Keyframes in Blender Dope Sheet

Duplicating keyframes in Blender's Dope Sheet is an essential workflow technique that allows animators to quickly repeat motions, build loops, and adjust timing without recreating poses from scratch. This guide provides a straightforward, step-by-step walkthrough of the most efficient methods to select, duplicate, and place keyframes directly on the Dope Sheet timeline.

Method 1: Using the Duplicate Shortcut (Shift + D)

  1. Open the Dope Sheet: Switch your workspace editor to the Dope Sheet (or press Shift + F12) and select the animated object in the 3D Viewport.
  2. Select the Keyframes:
    • Click on an individual keyframe (represented by a yellow diamond) to select it.
    • Hold Shift and click to select multiple keyframes.
    • Press B and drag a box selection over a range of keyframes.
    • Press A to select all visible keyframes.
  3. Duplicate: Press Shift + D.
  4. Position the Duplicates: Move your mouse left or right along the timeline to reposition the duplicated keyframes to your desired frame number.
  5. Confirm Placement: Left-click or press Enter to confirm the new position. (Press Right-Click or Esc to cancel).

Method 2: Copy and Paste (Ctrl + C and Ctrl + V)

  1. Select Keyframes: Highlight the desired keyframes in the Dope Sheet.
  2. Copy: Press Ctrl + C to copy the selected keyframes to the clipboard.
  3. Move the Playhead: Scrub or click the timeline playhead (current frame indicator) to the exact frame where you want the duplicates to begin.
  4. Paste: Press Ctrl + V to paste the keyframes starting at the playhead position.

Helpful Tips for Duplicating Keyframes

  • Numerical Offset: After pressing Shift + D, type a positive or negative number (e.g., 10 or -5) and press Enter to move the duplicated keyframes by an exact frame offset.
  • Snap to Grid: Hold Ctrl while moving duplicated keyframes to snap them strictly to whole frame increments.
  • Paste Inverted/Mirrored: If you are animating symmetrical character rigs, copy the keyframes with Ctrl + C and press Ctrl + Shift + V to paste the mirrored pose on the opposite side of the rig.