Use the Accessories Theme as your 2nd or 3rd Theme.
Most buildings on the layout have lights or other accessories to control.
To visualize and control this in Rocrail can be done with the Accessory Switch and the new building SVGs from the Accessory Theme.
It is easy to create your own buildings as SVG and add them locally the the Accessory Theme.
The range from 51 to 60 is reserved for buildings in the Accessory Theme.
|55||Small station as 53 but only one cell size|
Alternatively, a building can also be added as Output object with SVG option "Accessory".
The Control option of the Switch object is therefore not available.