I haven't had the need for a lot of macros, so I haven't explored it very much, but I'm curious.

Ok, so the first rows of Ctrl and Alt macro list is for Ctrl + 1-0 and Alt + 1-0. But what are all the other macros for?

In FFXI, for Summoner I created some really complicated macros to switch between lines and books for each of my summons. Does FFXIV work like that at all for the other macro lines shown? How do you access them if you want to use them?