how to Enter the data of two entities at the same time?

dear  have you learn about the course <Expand Your Domain Modeling Skills>? how to Enter the data of two entities( Team and Player) at the same time? According to the course, I must first establish a team and then establish members thanks a lot!! the relationship like this: the Input interface like this:
1 answers

Create a dataview of the team and place a listview or datagrid containing the players. Then create the logic to add or remove players to the team. And you might want to do some learining paths like this one where the basics of Mendix is explained: or this one if you have some developer experience: