[DBC] three display Id: classical, native and spell aura id

[poke123]

hello everyone, after a few searches in the files, I noticed that the model could be represented by three dispayId:
- The "classical" dispay id: the id is used in CreatureDisplayInfo.dbc. It is also the most widely used and can easily find it.
- The "native" display id: the id is used in CreatureModelData.dbc it matches one m2 with a value but nothing else.
- The "morph" id: used by spell.dbc in column 111 (in patch-frFR-3.MPQ), it does not correspond to any of the other two but it is crucial to transform the player from a spell (using Apply Aura: [Transform] (id)).

my question is: "how to find the morph id from the name of the model in order to integrate him in a spell?".