Groups are a new feature available within professional and enterprise plans - as used to facilitate configurable access control (See "What is configurable access control?").
See "How do I upgrade from a free plan?" if you need to upgrade.
Account architects can add a new group to your Method Grid account.
To add a new group, as an architect, click on the "Members > Manage groups" option in the top menu.
Next, click on the "+ Add a new group" button.
In the new group window, ensuring you are in "Edit" mode (blue pencil action button selected), you can create a new group name by clicking inline to the "New group" title field (below the group avatar).
Group members can then be added to the group individually via the "Add members" dropdown (using the search field to delimit the dropdown options).
Changes are automatically saved.