Currently the ability to filter by user/office is contained in one giant scrollable field with checkboxes. This means that delegating files or filtering your shipment views to include just a single operator or series of operators requires scrolling thru this entire field with potentially hundreds of accounts and looking for a needle in a haystack. This is additionally compounded by the fact that these parties are in no discernable order other than possibly when the accounts were created (as opposed to alphabetically)
I propose the ability to collapse a field EG importers or headoffice, to get to those relevent to you quicker, but additionally the means to sort, filter, reformat, search, or otherwise refine the offices and/or operaters you are looking to filter to and/or delegate files to.