Action Group Manager is a mod for Kerbal Space Program with the following features:
- Add, Remove, Edit your action groups in flight.
- Manage your action groups from the tweakables menu.
- Add or remove all the symmetry counterparts of a part.
- Works with modded parts that add actions.
- Supports Career Mode action group limitations.
- Filter parts by category, stage, and/or a custom search string.
- Highlight parts for easy recognition.
- Adapts to vessel change, part destruction, decoupling, docking etc.
- Recap window provides a quick summary of all action groups that can remain open on screen at all times.
- Window customization allows it to look the way you want it.
- Supports full localization.
For more information please visit the post on the official forum page.