I had this idea about an addon, not sure if it exists already. tried to learn how to make an addon but that's not something for an idiot like me
this is how my idea was, whenever i mark a target (skull, cross.. etc) a unit frame pops up, kinda like set focus so i can easily target it later or during a pull, not necessarily me marking it. for example during a fight, DBM automatically marks targets and such, what i want is to easily target the marked asap.
another good idea is to have it attached to set focus itself.
yet another good idea, to be able to see buffs AND debuffs on that marked target, like CC's for debuff or any other buff on that target.
if this kinda addon doesn't exist already, would love to have someone make it
and i don't mind getting some credit for it