well you'll know because it will show in your MQ2 window whenever one spawns. If a name pops up i'd assume it's a named that just spawned, so no you don't need to know because it informs you. if you need a list of names for each zone goto allah
load the plugin and go do what i said you'll see what i mean.
You don't need to know the names of the named for it to work. It just brings to your attention the mobs that spawn in whatever zone your in that have a #in there name or are Capital letters (i think)