If flying with Norwegian within the Nordic countries or from the Nordics to Europe (and having only carry on luggage), one can proceed directly through security and to the gate without boarding, etc.
My question is: how do I get my seat assigned and do I have any influence on what seat I get?
From the Norwegian website:
Direct to Gate is a new service available to our passengers who travel with hand luggage only on a flight within the Nordic countries and from the Nordic countries to Europe.
All you need to pass through security without being checked in is either your travel document or SMS ticket (if you have a smart phone). You must arrive at the gate at least 20 minutes prior to departure for domestic flights and flights between the Nordic countries and 30 minutes prior to departure for flights to all other destinations.
NB: I know I could do online check-in and select my seat, but the question really is how does seat assignment work with direct to gate, possibly influencing the seat one is assigned or choosing the seat is secondary?