Missing icon in settings for bootcamp startup

Hi

Installed Windows 10 the proper way through Bootcamp with a bootable usb and all that.

Now i miss the icon in settings where i choose what disk to start from.

All i get is El Capitan. No windows available.

I know i can hold Alt during startup and choose disk, but i want to have the choice in settings.

It works fine the other way. From Windows back to OS..

Thanks

/M