Can't enter as a party to a custom game

I don’t know if we are doing something wrong, but when we play a quick game in party, you can see their tags on their heads and their icons in the map, I feel that’s a good, it makes easier to find each other and coordinate, but when we are in party and try to enter a custom game, they don’t enter together with the commander, and if they enter individually to the custom game while we are in party, we cannot see our tags or icons in game. Are we doing something wrong? I hope we could have the same feature from quickplay in custom games. With all the chaos is difficult to find each other