L2J Server

So I'm making few custom raid bosses.
I've done NPC - it's described as raid.
I've done all stats and drop.
Now I'm trying to add them to spawn list via raidboss_spawnlist table. I've added them to table while server was off, with respawn set to 0. So in my understanding it means they're alive. But once I turn server on, they're not there!
What I'm missing for this to work?

Don't touch that table just go ingame spawn it with gm using //spawn XXX
And then just kill it raidboss spawn table automatically will register it.

thank you.