Earlier I somehow managed to upload multiple wav files along with my patch but I am unable to do it again.
I had created a directory with the same name as the patch and placed my files there (16 wav-files). They somehow appeared in the file-manager window. But I could not make it happen again. Is this how it is supposed to be done?
Otherwise the file-manager seems really unforgiving and only allows uploading a single file at a time to a given directory.
When I drag multiple files and drop them on a directory, the second and subsequent files are placed in the root directory.