This is one of the better qol additions in this patch for me since I always use a controller wether I'm on ps4 or pc. Since left thumb stuck is already used to dismount I'm going to use it for a mount macro. I've been planning to make this macro for a long time but procrastinated and never got around to it. Don't know exact commands right now but something like
/ac "mount roulette"
/mount "companion chocobo"

Then I'm thinking I may put a limit break macro on the right stick. So since I never got around to making that mount macro before this will clear up 3 spots on my hotbar. Which is going to be really useful when 3.0 comes and we get more abilities.