Thats The Only Way.. 10MB is max amount of space for a project but you could sepperate it in different things like part 1 part 2 then people can download it and import all projects into 1 project. Hope That Helps
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There's one other way to cut down the file size: compressing. Go to the Extras menu, and if there's sound, you can go to compress sounds and choose how much you want it to be compressed. If you have lots of pictures, you can also go to compress images and choose how much compression you want.
The problem with compressing is sounds/images lose some quality.
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