[Feature Request] Reverse with selection context

[brian6932]

Is your feature request related to a problem? Please describe.
When you use reverse an animation in the editor, the whole animation reverses, instead of just the selected context.
In Photoshop for example, selection context is used in the timeline when reversing frames, this feels like a much better approach imo. It allows for easier looping.

Describe the solution you'd like
Add selection context to the reverse feature