The tag attribute propertysheet allows you to edit HTML and XML tag attributes and events in a propertysheet without having to open a second window.  Whenever the cursor in the Document Source editor enters a tag, all the tag's attribute values are loaded into the attribute propertysheet.  For HTML tags, the attribute propertysheet is tag sensitive, so it only displays attributes appropriate to the tag you're editing. For XML tags, the editor only loads the attributes defined in the tag you're editing.

All of the attributes are categorized into category blocks which you can expand and contract. As you highlight an attribute in the propertysheet, the bottom of the attribute window displays a description for it.  Many attributes offer drop-down lists of common values. Some allow for file browsing and others for color selection using the Color Chooser. HTML style attributes can be edited using the style editor provided with Spider Writer.

The propertysheet sample in the right would output: