Batch editable sandbox shipments

Ability to filter down and batch update / delete shipments. For now works without visual indication of dirty records, as I couldn't figure out how to do that consistently for both individual and batch shipment updates. 

The filters section is initially collapsed as per Patricia's suggestion. The 'select for update' button within the filters section shows the update form. Blanca suggested that the two need not be visible at the same time. She also sugegsted to hide the 'blank' checkboxes and reveal them on hover, because they clutter the space.

I'm wondering if it would be a good idea to switch the filters section to the update section when the user filters down through the validation error links?