You will need the Full Write Service Plans permission to split and unsplit a team.
Split teams let you organize teams with volunteers serving at different service times. Each service time is displayed individually and can have its own unique set of assignments and requirements.
In the screenshot below, notice the Arts and Communication team is shown two times, once for each service time on the plan. Each split has its own set of assigned volunteers and needed positions.
Teams can be split at the service-type level. This means a team that is split for one service type can be un-split on another. To indicate which teams should be split, go to Service Planning > Service Types from the left-hand menu and edit the service type. In the window, open the Teams tab and check the teams to be split for plans that use this service type.
Upon saving, confirm this change, since it affects all service plans that use this service type.
Split teams on a service plan are scheduled like any other team. The difference is that there will be as many splits as there are times of type Service on the plan. Each split team shows the time it is for underneath.
A service plan does not need to schedule each service time. Plans can have volunteers scheduled for a subset of the service times.
Important: When editing the service type, splitting and un-splitting a team with existing assignments and/or needs will result in changes to those same assignments and needs. See How does splitting/unsplitting affect existing service plans? for how the system handles this situation.