How can I edit the items that show up in the "Check#" list (i.e., , Dep, Trn, etc.) ?

While looking at the Home Page, select the menu item "Account"->"Edit". This will display the dialog for your overall account information. Use the "Up" and "Down" buttons to the right to change the order of "Check# Items", the "New" button to create a new item, or "Delete" to remove items you do not want.