Yes. You can switch between the displays of the TFT and the Navigator while riding. For this, keep the MENU rocker switch on the left handlebar grip pressed upwards for a longer time.
To return to TFT operation, keep the MENU rocker switch pressed downwards for a longer time. The TFT display will show you the device used at the top left.
Please note: The prerequisite for operating the Navigator via the BMW Motorrad Multi-Controller is the option "Preparation for navigation device" (SA 272).