sorry buttt

Hey guys this is my first post on this site am awaiting for my membership.
But FSX is my first flight simulator game i have bought for pc and am over the moon with it.
So I was just wondering can any one tell me if I can turn the airport detail up seperate from the landscape? I turned the airline traffic settings up etc.
but it doesnt increase it a great deal.
E.g I wanted every gate to have a walkway ect.
Sorry if its a silly question.
many thanks Devos/rookie