This feature was added in version 0.85+1.0 of plugin FusionInventory
To export a package, go in list page of packages and check all packages you want to export, click on Actions (massive actions) and do export.
Each package will be exported (one file per package) in folder glpi/files/_plugins/fusioninventory/files/export/.
- Copy the zip file generated with export function in folder glpi/files/_plugins/fusioninventory/files/import/
- In list page of packages, you have a link in top to go in import page
- Click on package you want to import (import create or import update existing package)
- It’s imported ;)