Michael
File/Preferences/Legends and Lables/Grid Visible Columns and tick Dist(NM)
Regarding the monitor, couple of ways you can do it, either by a computer and monitor or connect a monitor to your laptop using an appropriate cable, if its a newish computer it may have a HDMI port to connect to a monitor
Regarding details on the app, click on the 3 dotd, bottom left, click map options and move the slider for Show Labels and the sliders for what detail you want on the lables
Alan