Once WinUAE is loaded, all floppy bridge configuration is handled from the Floppy Drives page. On the drop-down for floppy drive type, choose Configure FloppyBridge.
The following video shows you this and explains all the options:
COM Port: The port your DrawBridge, Greaseweazle or Supercard Pro is connected on
Mode: The disk access mode. Start with normal and if you experience problems switch to More Compatible
Normal The fastest mode, but a very small number of non-DOS disks might not work
More Compatible Slower, but may fix problems with above issues
Turbo As fast as possible, most likely will break some games. OK in Workbench
Stalling Most Compatible, but will freeze WinUAE while disk access occurs
Smart Speed Dynamically switches between the above selected mode and Turbo for fastest access that will work with most games.
Auto-Cache Caches the remaining data from the disk in memory when the drive isn't in use
Disk Type If you want it to auto detect DD/HD disks, or force DD or HD. Note: If using HD disks as DD, then read this first.
Cable Select What type of drive and where on the cable the drive is located.