AoE3 - How to start a ranked treaty game?

So I’ve been playing aoe3 2v2 and 3v3 casual ranked with my mates and we’ve become decent and want to start playing ranked. However whenever I look in the ranked tab I only have the options for supremacy and empire wars, no treaty. Even though when I look at tanked overview treaty shows up? Please could someone help me get into the treaty ranked playlist

For playing ranked treaty you need to go on browse games and create a lobby as if it was casual games.

P.s. this forum is for aoe1 DE discussion, and there is an aoe3de section on these forums you can use.