Technically you could connect the wall-to-roof connectors in place of the roof-peak connectors for a flat roof in the middle instead of a peak. However, you're sacrificing structural support doing this, and you're not really gaining much except some vertical space in the roof area that is far above people's heads and generally unused. Doing so may require additional internal guylines and wiring as well. An alternative would be to keep the frame structure the same, but connect the roof from peak-to-peak instead of back down to the wall side.
In either case I wouldn't really bother. You're not gaining much usable space by adding vertical space above your heads unless you're hell-bent on hanging a disco ball there or something. Our camp has about 3-4 carports abutted together for a communal space, plus a standalone canopy for a hang-out area out back, and it works just fine. You can decorate the internal pylons, etc. and nobody pays attention to the roof anyway.
"The essence of tyranny is not iron law. It is capricious law." -- Christopher Hitchens
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