G'day CJ,

You can have the fly set up and the side annex rolled up if you don't want that out. You may still need the sides of the annex pegged out to help create stability as shown in the 2nd to last photo on the product page. 

G'day Ted,

Theres abit of confusion here sorry, we'll take a look a recording our info to make it clearer.

The annex/awning/storm cover is essentially the same thing.  This attachment for the Duke only covers the roof, and comes off one side.
You can set it up fully enclosed like an annex, have it set up fully mesh, or you can have the large annex flap set up with poles like an awning, whilst the sides remain for privacy and protection - much like a tent vestibule.
Hope that helps.

G'day Ted,

No, theres no floor in this one - it basically just acts the same way as a vestibule or awning space on a tent.
If you are wanting floor protection you could consider a small tarp that acts as a groundsheet for under your swag as well as covering the annex space.

G'day Brent,

Great question - its not designed too, obviously with it being a Duke swag accessory, but you could potentially make it work.
We've not tried it in person, but know from previous feedback that the poles on the Duka and the Outbreak dont line up, and there isn't the same velcro attachment points.
If you do decide to go ahead, bare in mind that the misalignment of attachment points means it won't have the same level of waterproofness.
Hope that helps!