As you manipulate keyframe selections using the visual keyframes in the FCurves pane, the VK (Visual Keyframes) Ripple option lets you determine how keyframes move to accommodate your changes.
When VK Ripple is active, and the VK Ripple Options in the contextual menu are also active, dragging keyframe selections using the green bars, pushes other keyframes later in time outside the selected region (A and C in the following figure).
Using VK Ripple A. Green bar along the vertical axis B. Gray box C. Green bar along the horizontal axis
If you use the gray box to drag the keyframe selection, the keyframes move as if VK Ripple is not active.
For example, to push keys forward at the end of a keyframe region, activate VK Ripple and drag the selected region to the right using the visual keyframes on the horizontal or vertical axes.
When VK Ripple is disabled, moving keyframe selections does not change the position of other keyframes, as each keyframe maintains its space.
VK Ripple must be activated if you want to use the VK Ripple options in the FCurves contextual menu and ripple your edits in various ways. See VK Ripple Options.
