Creature field_id Help

[Rog360]

Been trying to change unit_flags of npc with script. Anyone please tell me how to get field_id of unit_flags for 3.3.5. I've searched with no luck. Would love to know how to find all the field_ids...

TIA

[YuruY]

This flag comes on Sniffs.

[Rog360]

Yes, But I want to set it from not attackable to attackable with script. Thanks for your help...