The question on creation kit (Fallout 4)

Izanagi
All the guides on youtube are.

Izanagi
There is responsible for this parameter Fraction. Every creature is bound to one or more factions (Faction). The factions are separate entries, and in them is written, to whom NPC is hostile and who is friendly.
To make a friendly NPC, you need to delete all records about hostile to GG fractions, and add at least one record with a user-friendly.

Another question, the opportunity to engage in dialogue is limited to the races?, I have tried to create intelligent Deathclaw, but I can't talk to him.

Izanagi
It looks like because of the wild and civilized ghouls in the game there are two separate races.