How to edit items available in the "Check#" field (i.e. Dep, Trn, etc.)

After selecting the Summary view in Moneydance 2015 (called Home Page in Moneydance 2014 and below) in the left sidebar column, 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.