I think it would be pretty useful for players if you could add one more extra bar apart from the one that we already got , since imo one bar just isn`t enough to put in all the skills you want . So an extra bar would pretty much sollve the problem instead of having to click `s` every single time you wanna use a skill . Also , you can add an option that let`s you disable/enable the individual bars - in case you don`t need the bars for w/e reason