Hello. tell me, does real dash have the ability to navigate the sensors or panel shortcuts using the keyboard arrows?
Yes, see the list of shortcut keys:
http://realdash.net/manuals/keyboard_shortcuts.php
Additionally you can create triggers from keypresses, steps explained here:
http://realdash.net/forum/viewtopic.php?t=1900&sid=77f0e48fd46f8177bad826938d67489e
How to use these shortcuts from a tablet that has only a virtual keyboard?
They are not available with virtual keyboard. To access them you need to attach an actual keyboard.