qeue up for one or two position

Hi,

I play many hours a day lol and I love to play the role as a jungler, because I am not really good on the lane. But the selection for the role forces me to select two positions, although I only want to play as a jungler. Today I wanted to play jungle, but 5 games in row I got my second position, which I only choose because I have to. So it would be very cool if the player are able to queue up just for one role or for two roles if they want. I would wait a couple of minutes more rather than play a whole game on a position I don't want to or have to leave the champion selection and get a 5-15 minutes ban.