yes, it's possible.
If you Add New Report you can build report on Custom table, you will probably want to report it on Netflow Flow History.
You can define your filter, you will probably want IngressInterfaceID is equal to your interfaceID and e.g. SourceIP equal to a.a.a.a and DestinationIP equal to b.b.b.b.
Then you can Edit table to see exactly what you wanted to see. I'm using SourceIP, DestinationIP and then Bytes and Packets in 1000 B (Data Unit selector) in Sum (maybe sort by Bytes etc.)
Also you wanted to have it on Last 30 days. I think rest you will easily edit by yourself.
More info you can reach from help - SolarWinds Online Help.