If you place a particular model in a particular skin on a map using the map editor and save it, then if a different model has been loaded into M_Cons as a replacement it will replace all the instances of the original on the map. Restoring the original model in M_Cons will then restore the original models on the map (i.e you do not have to keep editing the map to change the buildings)
When you have the russian mod loaded and you are using the map editor and have chosen to place a village then the first village skin type will be the correct izba skin for the model. The other 7 slots correspond to the original european village model skins so will give an odd look if applied to the izba model. If you continue to cycle past these you get the model and 2 skins of the original oriental village which can still be used.
For the hamlets the map editor cycles through the hamlet types 1,2,3,4,1,2,3 etc and the available skins. if you have the La Hai mod installed and the russian mod then you will see the options as follows
Hamlet 1 in white/grey livery; La hai model in correct white/grey ; stone windmill; izba hamlet in odd old hamlet 4 texture;
Hamlet 1 1/2 timbd; La hai 1/2 timbd; stone windmill 2nd type; izba hamlet in odd texture;
Hamlet 1 in white/grey livery; La hai model in correct white/grey ; stone windmill 3rd; izba hamlet in correct izba texture;
Hamlet 1 1/2 timbd; La hai 1/2 timbd; stone windmill 2nd type; izba hamlet in odd texture;
i.e to place a correct izba hamlet on a new map you need the 12th hamlet in the list 9the little picture helps as you will see it is correctly textured.