A formatted output of all attribute groups, their values and their attribute names. Ex: . showall - shows all 3 values, attribute group, attribute and attribute value.
groupid- allows only a specific attribute group to be specified
hidelabel: hides the label of the attribute, it is visible by default
link: will create a hyperlink for the item and point it to an attribute listing page with other products that have the same attribute as the one selected.
Multiple groupid can be seperated with a | (ex: groupid=4|5)