How to disable mobile network

Jan 4, 2019
Hi All,
I'm looking for a way to disable a mobile network and by that I do not mean the mobile data - that is easy.
In dual-sim phones there is a switch to selectively disable one of the inserted sim card and I would like very much to have that option in my tablet.

In my old iPad one could achieve it in two ways:
-cancel PIN input after reboot,
-toggle a switch in Settings.

Cheers, mcmlxxvii