A list of available attributes for the element you are currently editing, are shown in the second palette-window and offer the same functionality as the element entry helper.
Mandatory attributes are automatically highlighted by an exclamation mark "!"
Existing attributes that cannot be added to the current element a second time - are shown in gray.
In the Schema Design View, this window is called Details, and displays information on the currently selected element of the content model.
To change content model parameters:
1.
Use the combo boxes to select different parameters, or
2.
Double click into the respective row, and edit/enter text directly.