I show Cross Hotbar 3 (Left) with both of the expanded trigger controls, so you can easily add in another 8 actions if you prefer, I use XHB 8 as a shared bar between all classes for traversal and general actions outside of combat. Role actions are consistent among my layouts, and so are general actions. The macro icon is a placeholder for a Tincture/Gemdraught.

This was my first tank job that I actually worked on, and paved the way for all my other tank jobs to use a similar setup.

Hotbar 1: On top there's the 1-2-3 combo. Along the right side down, there's the oGCD, and AoE oGCD. Second line is the AoE 1-2 combo. 3rd row is the ranged action and gap closer. Last, there's the two burst window related actions - the hit-harder button, and the free cartridges button. And the sprint has always been there for all the jobs. Sprout carryover.

Maybe

Optimized for Hori Tactical Assault Commander Keypad using 4x3 cluster of buttons 1-4, 7-10, and 13-16.

Hotbar 2 is accessed using CTRL modifier bound to top side mouse button. Hotbar 3 is accessed using ALT modifier bound to the remaining side mouse button.

MMO Mouse 3x4

Just copied Nanaki's

MMO mouse setup with modifiers.

Note: Sprint and Limit Break should be on a Shared Hotbar!!!

Workin progress Gunbreaker

Valen Bree

Peripherals are Corsair Scimitar Elite

All jobs will follow a similar pattern to make job transitioning simple and not so overwhelming

Not too far off from my lvl 90 hotbar that made sense to my brain. Thinking this will work out well

Gain Vice of Thorns. (Uncouple from Embolden. Auto-attack as placeholder.)

Gain Cineration. (Uncouple from Manafication if possible?)

Gain Searing Flash. (Decouple from Searing Light. Teleport as placeholder.)

No new buttons otherwise.

Gain Full Metal Field. (Decouple from Barrel Stabilizer. Teleport as placeholder.)

Seems like that's about it.

Gain Last Dance. (Teleport as Placeholder. Not actually too sure if this is a new button.)

Maybe play with where Saber Dance, Last Dance, Starfall Dance, and Fan Dance IV are. Might feel bad to hit those buttons in those locations.

Auto-attack is Pitch Perfect. Keep that seperate.

Gain Resonant Arrow as a follow-up from Barrage. (Uncouple as a follow-up. Down arrow macro icon as placeholder.)

No real changes. Unfortunately.

Lose Shoha II (Thank God.)

No new buttons.

Lose Huraijin.

No new buttons.

Lose Anatman.

Not much change otherwise.

Spineshatter Dive replaced with Winged Glide.

Not much change.

Gain Psyche. (Jump as placeholder.)

Gain Philosophia. (Teleport as placeholder.)

Lose Astrodyne, Draw, Redraw, Undraw, Play.

Gain Astral/Umbral Draw. (Draw as placeholder.)