looking for an addon

[kage1996]

anyone know of an addon for hunters that auto switches the first action bar when an enemy comes within melee range

[IcarNS]

I really don't think this exists.
Try keybinding the swapping of the actionbars.

[Uckington]

I remember seeing an action bar that would show only when u were in range or in combat etc.
Found it :
https://wow.curseforge.com/projects/project-553

this might work for u if you customize the options a bit