It seems that when you create a field type for upload (Document - Database or Image - Database) the multi upload section where
you need to define the database fields linked to the upload function is not available.
The complete multi upload section is missing and you can not use the field type.
To see multiupload options, you don’t use a field of database. You have to create a new field in SC, define it as Document/Image and then you will see multipload configuration.
This works only of the form application type.
This does not work on the control application type. The “document (database)” option is not available on the control application type and the Mutli Upload options are also not available.
It seems though that it worked in V7 if you look at the videos but does not work in V8.