If all you're trying to do is keep the two separated, you can temporarily change the user call sign in setup, and then change it back when you're done. Another option is to set up whole different database for the /1 call, but that becomes problematic if you're qsl'ing running reports etc, as it's not integrated with the main log unless you export it and import it into the main log (it will maintain the operator as /1 if you do it that way, though)

73 Doug W5GA