Fill with less % of Support option - Draft

So, basically what the title says. I almost always go Fill in Draft, I don't play rankeds and well, in blinds you have 1 or 2 yasuos each game, is really getting boring, so I want the option to ban champs so I don't see the same over and over again. But 99% chance when you select Fill you go Support. Now, I don't mind going Support, some games, but not every game. I specifically pick fill because I want to play randomly each game, instead I get put in Support role each game. Any chance we could get an Option which is Fill, but if you already filled last game as sup you would have decreased chance of getting sup again?
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