[Dunge0nMastr]

unique spawns means that the npc will not spawn if theres another in the zone with the same id (useful for scripts in particular)

Spawn limit is the # of npcs with that id that can spawn @ once (i believe)

and as for spawn times, theres 2 ways to handle it, theres the spawn2 table which you can use to set spawn times by searching for the spawn group IDs within that table, and theres also an in game command:

#advnpcspawn editrespawn <time in seconds>

you can use that in game to edit the mobs - just make sure you add them to the zone #npcspawn add, before you try to set their spawns or it will crash (at least in my experience).