may i suggest to SE if they would decrease the action bar they could create

Job traits

for example

enochain become black mage Job traits

which would have same effect as it does as skill

in this enochain would proc then it go through cool down.

some cross class skill could also become traits for example the one give benifitted to gladatiors healing could also have proc effect when one health of a tank reach 30%

also the paladin skill called sheltor could become a proc trait would effect you mana be low

also upgrade and replace job ability for example scholar

the archer rage strike could be proc trait as well

so could be mantra