Ability to pass References to the API for Reporting purposes

In our set up , we host multiple clients which may generate multiple packages . Since they all transit through our one eSign Account, we would like to see a way to : 1. Pass Custom References ( These are usually key items like Institution Code , Application No ...etc) 2. Search by those references 3. Generate reports based on those References. This will greatly help track down package once it landed in eSignLive back to where the actual application originated. Also it will provide valuable reporting tool per Custom Refence ( in our case per Institution )