• Character entities list — Lists the character entities defined in the current document's document type. Double-clicking on a character entity inserts the entity at the document's current cursor location.

• Insert — Inserts the selected symbol at the document's current cursor location. When the Character Entities tab is selected, the Insert button inserts the character entity of the selected symbol in the document. When the Symbols tab is selected, the Insert button inserts the character code of the selected symbol in the document.

• Close — Closes the dialog box.

• Help — Displays this help topic.