1st: i don't know anything about to build an addons so if someone does i will be happy to use it ^^.
My idea is a simple mod with the classical raid icons (skull,diamond,square etc.)displayed.
When you click on the icon the mod target the marked mob.
Some keybind will help too.
This could help a lot in confusing fight.
If something like this already exist pls tell me the name, otherwise enjoy this idea.
Tank you in advance.