To control trains while walking atround the layout we need a mobile throttle. Several brands offer hardware throttles and as long as it has a Loconet or an Xpressnet connection it will work fine with the DR5000.
In case you do not (yet) like to invest in a hardware throttle there is an alternative: since firmware version 1.4.7 the DR5000 can connect with the free Roco / Fleischmann Z21 app on your smart-phone or tablet.
The video shows the steps needed to connect your PC and smart-phone / tablet to the WiFi router that is built in the DR5000. Once the WiFi link is established, we can enter the IP address of the DR5000 in the Z21 app settings and it should connect.
Have fun with the Z21 app connected to the DR5000.