Navigation via QR code
A QR code can be generated for each page below a device. With the help of this QR code it is possible to open any page of the app directly. For this purpose, the QR code can be used as a graphic or the URL behind it can be used directly.

A QR code can also be generated for a graph. This QR code can be used to reopen this graph as well as a single page. For this purpose, a button for generating a QR code is displayed at the top of the navigation bar.
