Selecting manual Cellular Provider

We are testing an HD2 LTE on a boat along the swiss frontier. Now we have swiss sim cards working fine. But we do not like to connect to a German provider. The roaming is off, but it is not possible to select only Swisscom as provider. At the moment the HD2 will select the cellular provider automatic.
Selecting manual Cellular Provider is essential for us!
Pleas put it in the next Release.

Elmar