Press the green flag or space to randomize teams, and R to delete. (Note: If the number of numbers doesn't divide evenly by 4, then there will be empty spaces on team 4.)
This is for a project my teacher had me make to organize rows for our class. Thanks to Alex Steve's video for help. (Link to video ->) https://www.youtube.com/watch?v=vHo_j1Dc__o