Note, due to changes in dropbox, you may need to logout and then log back in if unrealBook doesn’t detect files.Importing files using Dropbox
Press the + button in the set list toolbar.
Choose Share… Set List And All Files.
Choose whether you want to include annotations (drawings).
When the share window comes up, choose Copy to Dropbox
In the Dropbox app, confirm the save.
The zip file will be saved into your Dropbox folder.