Board Game Arena

i moved my prototype to private alpha. how do i add anybody to the game? i can see bga added 13 users, but when i try to go (group link for alpha) https://boardgamearena.com/group?id=19366699 i get no authorized, and in (group link in the top row) https://studio.boardgamearena.com/group?id=1050126 i am only able to see/invite developer accouints, not normal users. was i supposed to link my regular account to my dev account somehow first?

Ask the Studio support to add you to the group, you're supposed to be in it, and then you'll be able to add more players.
Ignore the studio group, private alpha is on main BGA website.
When you registered to the Studio, we asked you your BGA nickname, so we should already have it.