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Edit multiple keyframes in the Graph Editor
You can edit and move multiple keyframes
simultaneously using the Graph Editor. When you select multiple
keyframes with the Show Transform Box button selected, a free-transform
bounding box surrounds the selected keyframes, and an anchor point
appears in the center of the bounding box to mark the center point
for the transformation. You can move the selected keyframes in time
or value by dragging the bounding box or its handles. You can also
change the position of the anchor point.
Adjusting a free-transform
bounding box in a value graph moves the selected keyframes in time
and value. Adjusting a free-transform bounding box in a speed graph
moves the selected keyframes in time only.
 When you select multiple keyframes in the Graph Editor, a
free-transform bounding box appears.
- Switch to the Graph Editor view and display the
keyframes you want to adjust.
- Using the Selection tool, do one of the following:
To select keyframes, Shift-click the keyframes
or drag to draw a marquee around the keyframes.
To select all keyframes for a property, Alt-click
(Windows) or Option-click (Mac OS) a segment between two keyframes.
- Do any of the following:
To move keyframes in time or value, place
the pointer inside the bounding box and drag. Shift-drag to constrain
the move horizontally or vertically.
To move keyframes in time or value by scaling the
bounding box, place the pointer on a bounding box handle. When the
pointer changes to a straight, double-sided arrow , drag
the bounding box to a new size. Shift-drag to constrain the ratio
of width to height. Ctrl-drag (Windows) or Command-drag (Mac OS)
to scale around the anchor point of the bounding box. When dragging
a corner handle, Alt-drag (Windows) or Option-drag (Mac OS) to move
only that handle.
 Scale by negative amounts
to reverse the keyframes in time.
To taper keyframe values vertically, Ctrl+Alt-drag
(Windows) or Command+Option-drag (Mac OS). Tapering keyframe values
allows you to reduce or expand the amplitude of a repeated animation.
To move one side of the bounding box up or down,
Ctrl+Alt+Shift-drag (Windows) or Command+Option+Shift-drag (Mac
OS).
To move the anchor point of the bounding box, place
the Selection tool over the anchor point until the tool changes
to the Move Anchor Point tool , and then
drag.
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