Layout help

Hello everyone! I'm about 40 days in learning Unity and development, working on my first small project which is all about UI and basics. I'm trying to create a card tabletop - it should hae 2 rows, each row consists 6 cards that an be dragged from Hand area. When dragged, every card should be placed to the first (top) row, from left to right. When the first row is full (6 cards), next row should be activated and all cards we drag should go there (left to right). I played around with standard layout and couldnt do that yet. Could anyone give a hand with setting up such thing please? I would really appreciate, its the only question I got this far to the forum in these 40 days. Any screenshots or answers are really welcomed Thank you in advance Anton