I'm just making some tutorial how to replace standart monsters with new ones (sprites).
I also can make the tutorial how to replace paper doll (now i know how it must be done)

I’m sure you already know some of this by now, and sorry that this is such a late response, but it is actually very easy to add stuff to the game and as you say ‘activate’ them. There are easy ways to get around this; for example, if you add a new item in the ITEMS.LOD file, that item won’t be in the game unless you put it somewhere. There are multiple ways to put this item in the game for players to use: you can put it in a chest for example, you can use the event language to place it on a particular sprite, or you can place it on the floor (this one being the hardest to do, as from what I understand, it has to replace an item that is already on the floor). This may not be what you are asking, but for what it’s worth.

I wanted to add new weapons to extend game's standart ones!
A wanted to add +5 staves and add sprites for them. And I wanted the game engine to automaticaly generate this new stuff - not putting 1 item into whole game like it is artifact.

Also I know how to do textured map from MM6 into MM6 but differences in codes make this new map unplayable!

With respect to adding items to a game map....

Here's what I have used.

1. Items can be easily placed in a chest (.ddm/.dlv databases of GAMES.LOD)

2. Items can be added to map coordinates using the Items entries (.ddm/.dlv databases of GAMES.LOD)

3. Items can actually be spawned using the Spawn Points entries (.odm/.blv databases in GAMES.LOD)

4. NEVER replace a sprite with an item.

For what it is worth ...

BDJ

You won't belive!!!!
I didn't think about it =)

There are many items like that! For example - long daggers - there are 3 of them but they are the same as simple ones.

Or tridents - still the spear but called differently =)

I'll notice this for MM6 MOD.