Module Cupola v2

Cupola is a observation module for Space station, with a large docking port (CBM)).

Key G: Open/close the laterals shutters
Key K: Open/close the top shutter

Realised by Momo, with the great help of Brainstrom.

Update v1.01: fix a conflict with the module Cupola of the addon "BuildingBlock2006"

Update v2: increase the brightness of the textures. Too dark in the previous release. Also modify the scenarios