Within AdEspresso you can import currently active campaigns.
In order to enable import you have to go under Settings -> Facebook Accounts and for each Facebook Ad account you want to import campaigns for set the On/Off switch to On.
Once you've enabled campaigns' import please allow up to 1 hour before all the campaigns are imported and analytics is correctly synced.
Please mind that the import is "once for all" and we do not update the campaign's structure if further edits are made after the import (eg. if you create new ads on Facebook).