Help with #spawn command

[Saavak]

I have pretty much figured this command out, but one thing that I am having a problem with is understanding the MerchantID part. Not sure what variables mean what in this.

Also, is there a way to make the spawned NPC use the actual weapon that he is spawned with(ie. graphic wise)

example:

#spawn Test_Mob 5 60 19 1000 0 1 87 87 0

This seems to make a Lv 60 high elf male warrior with 1000hp & dual wielding Short Sword of Ykeshas, but he seems to just punch & not actually use the swords in his hands. Is there a way I can make him use em & get the weapons to proc & such.

Thanks!