When I switch my Explore on I get the following screen which I think is the one you mean:
View attachment 819002
I then select the correct profile from the blue bar at the top, so Road or Off Road. Press one of the white arrows or swipe left or right to flick through the three standards profiles, Road, Off Road or Indoor. Then when the correct profile is showing in the blue bar, press the blue bar and this screen then pops up:
View attachment 819003
Once that screen is up I will then press the start button to record the ride and off I go. Maybe you have questions because you've not selected a profile to ride with?
These are random pictures I just quickly grabbed from the net, my screens are slightly different because I've configured them to suit me and I suspect yours will also show different things, but hopefully you get the idea.