Classification for custom games Supremacy?

A while ago the ranking system was added in custom games in treaty, I would like this system to be enabled for custom games in supremacy since the number of players is constantly decreasing there are many players who still play and like to play to win ELO and this last time the absence of players has made this system not work in a good way since when trying to play they lose more than 5-10 minutes waiting to get into a match.