A limited set of actions can assigned via macro commands. Incompatible actions are ommited from the generated macro. Also note that Macros are limited to 15 lines each.
Patch 6.3 lvl 80
Patch 6.3
warrior
XHB = 1 expanded (hold) = 2 WXHB (double tap) = 3
Nothing changed
WAR Cross Hotbar
Working on a lv80 Warrior and this is my hotbar configuration.