Tag Properties panel
You can use the Tag Properties panel to quickly see all of the set attributes and values of the tag that's currently active in the current web page. You can also use this panel to modify the set attributes and set new attributes for the current tag.
The Show categorized list button organizes the list of properties under categories, such as Attributes and Events.
The Show alphabetized list button organizes the list of properties into a single alphabetical list.
The Show set properties on top button organizes the list of properties so that properties that you have set for the current tag appear at the top of the list.
The Show Tag Properties button opens the Properties dialog box for the current tag, which typically provides the most commonly-used properties but doesn't contain all of properties that the Tag Properties panel provides.
The tag that's currently active in the current web page.
When Show categorized list and Show set properties on top are both selected, properties of the current tag are grouped at the top of each category's list of properties.
You can set the value of a property in the box next to the property name. You can type a value or point at the box and then click, when available, the arrow button or ellipses button and select a value.