Preferable champions

I think Riot should make Collection > Champions more interactive by giving us options to highlight champions that we like and wish to play in the future and this should be reflected in champion locking stage of lobby, when you think about what to play now. You would have the same categories like mid/top/supp/adc/jng/all and one additional, for the champions that you like. I know that we can do it in the lobby, we can choose which champions we like and highlight them with a star, but I wish to have the same option before I get into lobby so that I don't have to hesitate when I am outbanned.