[Help] Boss Tags?

Does the developer have to manually edit each boss in order to be able to spawn it because by default its not possible to spawn anything but the standard mobs:

400 Forn Khallhiash
401 Arr Khallhiash
402 Phameino
403 Arr Phameino
404 Di Phameino
407 Chemos
408 Mencenjstri
409 Kralj
411 Statue Kartere
412 Graybone
413 Khainen

Its not possible to spawn the following 3 bosses on any map by default:

418 Duskamiu
421 Goshualeng
422 Gunge

Do they have to be edited in anyway to allow them to be spawned?

Yep. Search the forums. There is a detail monster guide in teh stickies. It will give you an idea about what to do and what not to.

Thank You.