We are still in the process of releasing our App support for the 2 way switching setup, so the feature is not currently available on our App. We will post an update as to when it will become available!
Yes, all Den Light Switches can be used in a 2-way setup. This means that two switches can control one lighting circuit. For example, in your hallway you might have one light at the top of the stairs which you wish to control from both upstairs and downstairs. With Den switches this is possible, however, our dimmers do not work in the same way and you can only have one dimmer switch per circuit.