Replace model.

Yes, there is. You choose any hero (absolutely any), select him, and go to Properties Tree => AdvMapHeroShared => 3 points => A window will open. In the left part of it, there will be a file system tree; in it, search for the address MapObjects/DialogScene/Nicolay, select it, and in the right part of the window, the hero's properties will appear. Find the lines HeroCharacterArena and HeroCharacterAdventureMap (or similar) and, by clicking in these lines ..., select the address .../Characters/Heroes/CS/Nicolay_CS, select it, but only in Nicolay_CS (Character) in the properties, in ArenAnimSet and AdventureAnimSet, select the animation from Nicholas the vampire (so that there are casting and shooting animations), and that's it, save, and you're done. Hypothetically, it should work.