You can easily drill holes of your desired size into the panel. There are all the circular cut outs we implemented drill guides so that it is easier for you to place the drill properly and mount the switches with even spacing.
Just check your configuration by clicking the dotted areas to see how your panel would look like. If you click again, the hole is displayed as “closed” again.
Hint: If you want to drill your holes by yourself we got good results on first drilling a small hole from the backside and then to widen it in a second step from the front by getting the larger drill guided by the smaller hole. So if you need for instance a 6mm hole, drill it first from the back with a 2 or 3mm drill.