IP Routers and IP Interfaces can be copied exactly like the other KNX devices. In contrast to the actual insertion from the catalog, all IP properties are also copied. This also applies to tunnel connections deactivated in the original device. Our suggestion: Always insert Router and IP Interface from the catalog!
Also see: http://new.abb.com/low-voltage/products/intelligent-building-systems/abb-i-bus-knx/new-abb-i-bus-knx-ip-devices