Extending animation out-of-range by looping, repeat, or cycle I'm trying to look for an easy way to extend a simulation in one of several modes, similar to that in 3ds Max &quot;out-of-range&quot; feature, where I can specify that the simulation should repeat or be extended before and after the first and last keyed frames.
The feature dialog in 3ds Max shows a dialog that allows you to select what might happen before and after what is keyed, such as Constant (nothing, disabled), Cycle (repeat the animation), Loop, Ping Pong, Linear, Relative repeat (repeat from the present position, rotation):

How can I accomplish this in blender?
This is possible by using Keyframe Extrapolation, Shift+E in the Graph Editor. This shortcut is also available in the Timeline and Dope Sheet, and you can Ctrl+Tab to quickly access the Graph Editor from any of those panels.

Further, you can change Keyframe Interpolation with T

Finally, you can fine-tune these Modifiers in the Graph Editor under the N menu to restrict their frame range, among other adjustments.