@RoverDude I am finding the bay switching is bugged on 3 parts; the Ranger Habitation Module and the two Tundra Expandable Habitats. In the VAB the Next Bay and Prev. Bay switches do nothing. In the flight scene I am able to turn on and off all the available modules. Not just one of them. The resulting habitation time effect for the Hab is rather overpowered! I note that these are all expandable parts however the Ranger Agricultural Module seems to be just fine. New: On closer ins