Duel list - Friends

Currently in Duels in the Friends tab there are listed only friends from Facebook - why not display there all friends from friends list? It's so time wasting when I want to battle someone from my list more than one time. I need to go to Social HUB, go to friends list, tap on user, tap on Duel - after match I'm in Duels screen, soo I need to go back to main and again: Social HUB, friends, tap, tap. I think you should be able to do that from Duels section. Duels are one feature - friends other. What do you, fellow Chiefs, think?