If its just as the title, "to dry the awning out", what I do is simply hang its section inverted from hooks on the skirt loops to the inside roof of our garage.
With the awnings roof that has no such handy skirt loops, I have made up a few short webbing straps with about 100 mm off cuts of the "8" profile plastic section, so they fix to the awnings roof bead. Instead of webbing you could use slices of redundant skirt, then it does not require using my bits of scrap bead I have sown on the straps.
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Edit, I suppose you could readily use the clip-on blocks, if the awning uses these, as roof bead fixings.
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