There are two fields for every command as shown below:
Is this just a convenient means of assigning two different shortcuts to a command? Or is this something to do with key chords?
The documentation does not touch on this at all, I would like to know conclusively.

ctrl+afollowed byctrl+f. I am thinking Unreal is not referring to this concept though. It seems in Unreal's case, its just a convenient design that allows one to assign two different shortcut keys to the same command, why? beats me. \$\endgroup\$