Specify LTE band?

I see in the LTE configuration that there seems to be a way to change the bands:

But, when you click that field, it doesn’t allow you to click it and just collapses:

Any ideas here?

Apparently, the firmware for the US version does not allow this functionality. Which is a real pain in the rear. It’s my number one complaint about their US LTE solutions. If they could fix that, I don’t think I could buy enough of them.

Is there a way to change the country then?