I'm still very new to Blender and trying to make a game menu currently. Imagine 9 buttons in a 3 by 3 grid. I need it to where you can only choose one button per column and per row. For example:
1 2 3
4 5 6
7 8 9
If you chose 1, then you wouldn't be able to choose 2, 3, 4, or 7. This would leave you with 5, 6, 8, and 9. If you then chose 8 the last option available would be 6.
I'm fairly certain this is possible, I just don't know where to start.