In TeamBuilder, it's possible to allocate a person to more than one team. For example, a person may be a player in A Team, and a coach in B Team. Or, if your rules allow it, they may play for a team in one grade and another team in a different grade.
Step 1. Firstly, drag-and-drop the person from the 'Not in a team' player list on the left into a team (E.g. Div 2) on the right hand side. It will update their record on the left to show they are in that team and it will set the grade on their record to be the grade of that team.
Step 2. Drag-and-drop the person from the 'In a team' player list on the left into their second team (E.g. Masters). When you do this, a pop-up will appear 'Move or Add Person' asking whether you want to MOVE the person from the existing team to the new team, or ADD them to the new team as well as remaining in the existing team. Click the 'Add' and you will get another pop-up to select the role/s that the person should have in the second team. Select the role/s required and click 'Add Person' and they will appear in both teams.
Depending on the sport, there may be more or less roles available to assign to a person.