In the past the only way you could save and restore a flyer was downloading its setting file.
Now finally flyers can be saved in the cloud clicking the button "save flyer" in the top bar.
If you want to load a previously saved flyer, you can select it from the library clicking the grid icon on the left of the top bar.
From the flyers list you can delete or copy your flyers.
See the basic functionality in the video below.