So I came across this addon "Plate Buffs", which seems really nice.
Installed it through Curse Client, check on my character screen -> addons, if it was there, yes, good to. (isn't out of date).
So I log in and start hitting a mob and doing some debuffs (i.e. Harmstring), to check if there's some kind of default config, there wasn't anything.
typed in /pb, didnt work. Checked through Esc -> Interface -> AddOns, wasnt there either.
It seems like it's not 'activated' or something, does anyone have a clue?