“Reference #” column and filter on the Shipment Load Tracking edit form

Shipment Load Tracking edit form:

• “Add to SLT” button -> “Purchase Orders” panel:
  • Datagrid:
    • “Reference” column:
      • was added to the Datagrid -> next to the PO# column;
      • can be empty;
      • in the column is displayed Reference # from the Purchase Order;
  • Filter panel:
    • “Reference” textbox:
      • was added to the filter list -> next to the “Source#” textbox;
      • if the textbox is filled -> Datagrid is filtered.