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.
The XHB setup I use for my Fisher. 1-3 are unique to FSH, all else are shared between all jobs. XHB4's LT->RT pane is a selection of emotes. XHB7 is my job selector.
I am currently lvl 45 fisher, and this is the layout I use. I will update as I lvl up.
5-year KB+M player gets Steam Deck, is forced to learn controller. regular fishing is heavily prioritized over spearfishing.
Full Fisher WXHB I ran out of space to add other gatherer skills, but this is easy use for spear fishing on the 1LT and general fishing on all the other XHBs.