Hello @Filip,
SEBLOD don't implement that yet.
If you know php and your server have the "Zip" functionnality, you can use the plugin field code "Afterstore" to create the functionnality.
For example, you can add an other "Upload_file" field in hidden position of your form. Then in after store code, you create the "big zip" and then you setup the upload_file with the "big zip" file location.
then on content view you just have to display the "Big Zip" field.
Hope it will help you
Regards.
Lionel