map making question(s)

[Pocus]

hi,

with the new dominions scheme for numbering provinces, is the following possible :

design a map, number the provinces. Use this map to generate the fatherland, and send trn to players.

take the original map, mask with black areas some parts of it (thus overwriting the white dots of province center), and send this map to players.

will the game crash, will the province numbers be differents for players compared to the host?

My aim is to add terra incognita provinces, which would be lifted player by player upon entering some key provinces. I want them to be unable to gate toward specific provinces unless they lifted the Terra incognita, or I dont want them to see the whole map at turn 1 for example.