Reference: Create and Manage Server Lists
The Create or Modify Server Lists dialog is displayed when you select the New/Modify List button in the Insert Server List dialog.
You create a new server list by selecting <New Entry> from the Available Server Lists window and entering the actual name in the Server List Name edit box. You edit an existing server list by selecting that name in the Available Server Lists window.
You build the server list by selecting items from the Available Servers window. Do this by double-clicking the item or single clicking and using the Add button. You remove items from the list by either double-clicking or single clicking and using the Delete button.
Both the OK and Create List buttons will save the information for the new or modified list. The OK button will also exit the dialog.