Twisted Treeline Maximum Players

Hey everyone, I host a custom game club where we play custom games every weekend and we are always looking for new ideas for custom games and to create more. I though of Hide n Seek on Twisted Treeline but I realized that the maximum players on a team is only 3! I understand Twisted Treeline is a 3 v 3 map but for customs why can't Riot expand the options and make the maximum players on a team 5? Summoners Rift is a 5 v 5 map but there are options to make the team size 1,2,3 and 4. So I ask for Riot to expand the maximum players on Twisted Treeline to 5. Thank you very much and I would appreciate it if you guys can bump up this post so some Riot officials can see it. Thanks! Good luck on the Rift!