WSG - Download (stream) all files in a LogicalSet?

I'm using the WSG REST API and trying to download all files referenced in a LogicalSet. Downloading file by file by its 'instanceId' is not a problem. But it would be very convenient downloading all files by the master document. Is this possible?

Eg)

When you downloading a "master file" (LogicalSet) by its ID, only the one file is downloaded. The referenced files are not.

localhost/.../LogicalSet{DocumentId}/$file

I guess there is a way to extend the query in a clever way, but I just can´t figure it out by reading the documentation.