Dynamic Queue - "Fill buff"

Selecting "Fill" as a role is essentially the same as selecting "Support," 99% of the time. (I have landed something else maybe twice, even when "Fill" was secondary.) However, I find this role hardest to carry with and, thus, less appealing to me.

Sometimes, when I'm sitting in a queue for 5-10 minutes with Bot / Mid selected, I'm thinking that if I had selected Top / Jungle, I would've found a match already. But I don't want to cancel my queue and select those, because then Bot / Mid might open up.

What if there was a simple option: "Fill, except: ___"? You select (possibly multiple) roles that you feel uncomfortable with, or rather not play. I could then, for example, take "Fill, except Support" and then if -any- of the other 4 roles opens up I could take the first opening.

Apologies if this is a previous request, it's just the third time in a couple of days I've been sitting in a long queue thinking the same thoughts. :)