I think you're confused. XIV is not XI. It's not a sequel, it's not horizontal or solely party based. XI was built a long, long time ago and it was inspired and emulated (pretty well, may I add) the traditional console Final Fantasy feel. TP acted as your ATB, you had menus stacked on menus which led to more menus. Summons were a 'one and done' deal. XIV is not XI.
After reading this: "holding ctrl or alt will swap the action bars to an alternate version of that action bar. each key providing access to a different set. " I'm 90% sure you have never bothered even trying to look in game for the option, or outside of it.