• Show Children Elements — Displays the valid child elements for the current element. Green elements can contain PCDATA. Blue elements cannot contain PCDATA. By default, child elements are hidden.

• Show Sibling Elements — Displays the valid child elements for the parent of the current element. Green elements can contain PCDATA. Blue elements cannot contain PCDATA. By default, sibling elements are hidden.

• Hide Elements — Hides child and sibling elements.