Loudon Stearns (on his excellent blog) describes how the Soundcloud upload feature works in Live 8.3:
Works as expected with standard options including privacy,license, sharing, tags, name, and picture. There are no options to add to a set or group, again hopefully that will come in future updates.
Interestingly, it uses a separate upload “helper” app to actually manage the upload.
WILL KUHN 
