Action Commander
Action Commander is a Blender Add-on that helps manages multiple actions in your blend file with many different Utilities including switching Action, Importing FBX Actions, and Many More.
This Addon is useful for Game Development / Asset with Animation, as it is useful when your model uses many Animation
This addon is a successor of Frame Ranger
Read Future of Frame Ranger about the Deprecreation of Frame Ranger
Note
If You Have Already Purchased Frame Ranger On Blendermarket, you will be able to claim Action Commander For Free