To understand the definition of Sales Team members correctly click here
You may add as many external/Sales team members as you like without additional charge.
To do this navigate to:
Team >> External Team >>
(Some users may see this as Team >> Sales Team members>>)
To add a new external team member click Add new:
Populate the required fields and select the databases you wish to associated the member with. You can select all or hold down CTRL + Click on the ones you wish to highlight individually.
To edit this information later simply click edit on the individual in question: