Interface
I would highly recommend trying out EllesmereUI for a very customisable and modular interface.
Macros
Macros for Elemental largely consist of cursor macros for our various placeable abilities.
The only mandatory macro is the Earthquake cursor macro listed below, if you play that version of it on the choice node, so you can avoid having to left click whenever you want to place it.
Earthquake Macro
#showtooltip Earthquake
/cast [@cursor] Earthquake
Capacitor Totem Macro
#showtooltip Capacitor Totem
/cast [@cursor] Capacitor Totem
Wind Rush Totem Macro
#showtooltip
/use [@cursor] Wind Rush Totem
Earthgrab/Earthbind Totem Macro
#showtooltip
/cast [@cursor] Earthgrab Totem
/cast [@cursor] Earthbind Totem