A limited set of actions can assigned via macro commands. Incompatible actions are ommited from the generated macro. Also note that Macros are limited to 15 lines each.
https://imgur.com/a/Eym6nDe
WHM EW setup
6.55 Layout (Removed after 7.0 launch) : Here LT>RT remapped from Set 8 Left to Set 8 Right, only right half of Set 8 is used Set 1 - Primary Heals/CD ; Set 2 - Utility + Raise ; Set 8 - D
Waiting for the new action images to get added in to fully get this good
Make sure to change Double tap L2 to "Cross Hotbar 4 - Left" and Double tap R2 to "Cross Hotbar 4 - Right"
These are my whm hotbars for all non-pvp content.