Is there a way to filter enfeeblements on enemy focus/target bar?

[Mhaeric]

Where do I find that option in the settings?

Note that I don't recommend using the setting. Some debuffs don't stack and you won't know to not use them if someone else already has, and buff windows for some classes are made obvious by the debuffs they apply making it easier to line yours up with them. I personally just look for the debuffs on the left that have the green text to know they're mine.