I do not want this to happen. During Ifrit and Titan phases you may not want to use a gemstone action because a boss has stepped away and all you can target at that specific second is a weak add. In that moment a Ruin III is better to use so that you can save your potencies and proc (Titan) for the boss when you can hit it again.

It is also not that hard to get used to the different button locations as SMN is implemented now. Perhaps when more actions are added with future updates this sort of thing could be done. However, for right now I would like the option use a ruin action or a gemstone action.