I've heard of a hardware device that will allow you to set floppy drive assignments to whatever you want, but can't find anything in a search.   
I have an A2500 with both internal floppy bays taken up with a flash card drive and floppy emulator, but no way to boot from real disks.  I want to use an external floppy drive to do this.  Has anyone heard of this before?     
Thanks!
Chris