Go to "Edit pages" on your magazine.
Then click the "CSV" button.
Go to the "Export" tab and choose a format of your liking. Here we choose "CSV", but you could take any of the options.
You will get a .csv file. This file will be used to restore your hotspots later on, so keep it save. If you want you can edit the file to make changes to the hotspots.
To import hotspots you just need to click on the "CSV" icon again and choose "Import". Then upload your .csv file and you are finished.