Dynamic build of Matrix Teams using Group Build

Hi,

We are looking at the feasibility of using Matrix teams to allow our leadership team from a specific entity access to GSS transactions. We have configured a new Matrix type to enable GSS component and a new Matrix team to cover the employee listing. This would not be a static team and so we are using Group Build to identify the population. While this works with providing access to the Team Owner, is there a way to provide access to leads besides the Team owner? Need help with creating a matrix team dynamically (no position or supervisor relationship) with ability