I am aware that auto switching while entering/leaving dungeons doesn't work with this addon. The action that causes this talent switch seems to be unique and I need to find out how best to detect it
This addon will show/hide healbot based on your current spec, it is all automated so you don't have to change any settings to show/hide healbot. I have no idea why this was not included as an option in the addon by default.
As simple as this addon is it should streamline changing specs for classes that have multiple roles and will also make doing dungeons alot simpler as spec changes are common if you play a class with healer/tank/dps roles.