Bplist is the correct command however you will have to play around with the switches a bit. A trick I sometimes use is to enable the nbwin log on the Master under Netbackup\logs and set the general = 2 and Verbose = 5. Then retry what you want inside of Backup Archive and Restore. Check the Nbwin log, you should see the commands and switches that NBU used behind the curtain.
This also sometimes works for commands in the Admincmd directory if you enable the Admin log (but wont help for your question dealing with the BAR GUI)
Hope that helps