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.
Valen Bree
Fire II = Flare Star
Only for explore mode, duty support, and trusts.
The hotbar setup I built up after levelling THM into BLM (level 31 at time of creation).
Saving for reference
Crosshotbar for fire and ice phases with single target on the right and AOE rotation on the left side