Just for work. ;)

I use them instead of arrow keys and you can also click them. The left one has a macro for standard Mail greetings and the right one is +/*. Everything is freely programmable in Vial.

Yes, they are on another layer. If you don’t know: You can think of layers as additional shift key but instead of capital letters, you can get a completely different layout. F1 keys appear on the number keys in the upper layer.

Three layers.

It‘s a Germany layout.