I would like to use a random HS as main funciont, but also include other location changes like Dalaran or Garrison. E.g. I am currently using:
#showtooltip [mod]Garrison Hearthstone;Night Fae Hearthstone /use [mod][btn:2]Garrison Hearthstone;Night Fae Hearthstone

Using the Night Fae HS as main and tooltip and using a modifier or Right-click, it will use the Garrison HS. Saving me a Valuable Button.

Further optimization could be using the Adminrals Compass if the Garrison HS is on cooldown.

Some Addons create a button that you can call with e.g. Lite mount creates a macro with

# Auto-created by LiteMount addon, it is safe to delete or edit this macro.
# To re-create it run "/litemount macro"
/click [btn:1] LM_B1; [btn:2] LM_B2; [btn:3] LM_B3; [btn:4] LM_B4
``` But withouth #showtooltip support.

This would be an enhancement, if you are bored. ;)

I'm currently unsubbed from the game, but will take a look at doing this once the expansion drops.

Resubbed recently, I'll try to take a look at this in a week or two

A few years late, but it's finally working!