How to add any mosnter Spawn (vsro 1.88)

Hi Ragezone!

dude,
How i can add new Mobs to spawn in one place
Example:
i want add White Knight in DW every 2 hour

2-How change spawn of a monster
Example: I want change dw cave 60-70 to any other mobs

3-Who can give coordinates of GNGWC, Old login place and any other coordinates pls

Thanks you!