Below is a breakdown on the different actions available in the library of portlets.

"+"	This symbol allows for the creation or modification of portlets on the existing page
	This symbol allows for the creation or modification of portlets on a new or exitisting page.
	This symbol is used to add or modify sub-elements to an existing portlet.  This includes portlets like Menus, Contact Forms, Surveys etc ...
	This symbol allows you to create a copy of a portlet.
	This symbol is used to provide a preview of the current page or portlet.
	This symbol provides a list of update dates and the individual who updated that portlet.
	This symbol provides the ability to see the all the pages that portlet is currently being displayed on.
	This is the DELETE symbol.  All delete actions will prompt the user before the delete occurs.