If you use OpenCockpits expantionBoards you might have noticed that the position of your switches not are registered by SIOC before you flick a switch in each group.

But for €7 you can buy a new microcontroller that updates your expansion card (And thereby the MasterCards) to version v2. V2 reads the state of all switches upon start up. So no need for activate each group.

The process is very easy and simple. It is simply plug and play.