Question about some very basic model editing

[mrmoon]

Ok so I'm making a mod that uses several modified addons(with or seeking permisions).

I have the texture and config modifying pretty much under wraps but I am struggling with certain things in o2.

Through previous sessions messing around in o2 I can do a number of very basic things like delete parts of a model or copy and paste parts of models between models within a single addon with sucess.

Now when I copy and paste say a hat from a model within one addon to the head of another model in a seperate addon (moving the texture file to the other addon aswell) I am of course left with a textured man and a white textureless hat.
However when I copy and paste a hat from one model to the head of another in the same addon file I get a fully textured man and hat.

My question is this can I copy and paste something from one model to another with textures intact between models in seperate addon folders the same way I would in a single addon folder.

I have searched and searched but I can't find anything really helpfull I know this technique is called 'hacking' in other modding circles but I don't know what the correct term is in the ofp community.

I have also attempted reapplying the texture from man in addon A to man in addon B using the tutorials here and elsewhere and well o2 really isn't liking anything I do. If I'm not getting an error message when loading or applying the texture I'm getting an 'error saving failed' message when I think I've done it. Everytime I figure one thing out or find a way around I run into another roadblock.
At this rate by the time I release my mod no one will be playing ofp anymore.
I'm sure there is an easier, simpler way.

So to sum it all up all I wan't to do is take a hat from man in addon A and apply it to the head of man in addon B using the exact same texture and texture placement as man in addon A in the same way I can do this between models in the same addon.
I understand I am most likely missing something very simple.

[ProfTournesol]

Yes, very easy. You have to change texture path. Look here, and see my post for example.

[mrmoon]

Thats it! Thanks I really needed that.