This video walks through the view that creates the "My Edits" section of the "My Workbench" dashboard.

Editing the "My Edits" view

Go to "Structure => Views" (admin/structure/views) and select the view: My Edits (workbench_edited)

There are two displays for this view: a Page display, and a Block display. The block is what is used on the "My Workbench" dashboard, while the page is what you see when you click "View All" next to that block.

First, let's take a look at the Block display