All pertinent keyframe interpolation properties can be defined here when new keyframes are generated (using the red buttons in the Animation palette). Note that keys will be created with Interpolation set to Spline to preserve the existing FCurve shape if they are created while pressing the Ctrl key.

Overdub

If a keyframe already exists, the existing keyframe’s interpolation type will be maintained when a new keyframe is recorded (only the Value Key will be overwritten).

You should already be familiar with the following options from the Key Properties:

Interpolation

See Interpolation.

Quaternion Interpolation

See Quaternion Interpolation.

Lock Time

See Lock Time.

Lock Value

See Lock Value.

Breakdown

See Breakdown.

Breakdown Color

See Breakdown Color.

Tangent Preset

See Tangent Preset.

Auto Tangents

See Auto Tangents

Clamp

See Clamp

Weighted Tangents

See Weighted Tangents

Angle

See Angle

Remove Overshooting

See Remove Overshoot

Automatic Weighting

See Automatic Weighting

Lock Tangent Angles

See Lock Tangent Angles

Break Tangents

See Break Tangents

Lock Tangent Lengths

See Lock Tangent Lengths

Keep Visual Angle

See Keep Visual Angle

R23 Track Evaluation

See R23 Evaluation.