Is your feature request related to a problem? Please describe.
I would like to add all dungeon bosses in WOTLK to NPC ID to determinate that they are in fact a dungeon boss

Describe the solution you'd like
Player/Unit Info > Unit Char > Npc ID - Allow us to Add Npc ID as multi-targets as a example below

Npc ID - "12340;05678;09123"

Additional context
https://i.imgur.com/gno7hJX.png

This is covered by #4403