request: macro command /clearadditionalactions

As in title, I'd like to have macro command /clearadditionalactions or '/additionalaction clear'. The purpose for it being that it empties all additional action selections of current class. I know at the moment I can toggle off any defined skill but that requires me knowing exactly what skills I currently have selected. With the command I request it would be strait forward to make macros that set certain cross class skill sets for different purposes, like soloing or dungeon. Soloing tank doesn't really need enmity generation. Or any class buffs that can only be placed on other party members.

As for possibilities to abuse this, I see none, since the turning off the cross class abilities would still have same penalties as when done manually, not being possible during fight/craft and cooldowns if done out in the wild.