You can access your Workspace Settings via the workspace icon at the bottom of the app bar.
Here you can:
Change your Workspace Name
Change your Workspace Appearance Settings
Sign up for a subscription or review existing billing information
Invite and edit users in the workspace
Here you can add new users as either Workspace Members or Owners (see Workspace Users for more information) or update the Workspace User Type of an exisiting user.
Choose what your workspace users can do in the workspace in Advanced User Settings
Here you can choose the settings that distinguish Workspace Owners and Members