I have setup 2 instances of FLDigi one VHF one HF.
I used a signalink for one instance and internal card for the other, so I can't think of a way to share one card easily.
For setup I created two separate folders with different names, made a copy of all the folders in each directory, changed the default port for flmsg on one, and used the command line options to direct the desktop shortcut to the correct file.
