accessing cross hotbars

[Niwashi]

I use two or on some classes three cross hotbars. Hotbar 1 and 2 have class skills, while hotbar 8 is shared and has general skills like teleport, return, summoning mounts, and so on.

Normally, I can use R1 to cycle between hotbars 1, 2 (when applicable), and 8. When I'm an arcanist however and have Carbuncle summoned, R1 instead just toggles between hotbar 1 and the pet hotbar. How do I access hotbar 8 as an arcanist? It doesn't seem like I should need to dismiss my pet just to access my other skills.