[mgd]

4) first entry of the settings for storage
6) No. That's custom fields which are two of. There's one custom group with arbitrary entries (hence group).

re 4) Sry for appearing stupid. In the storage options I have:
"Set the MobileSheets Storage Location" where I can enter the storage path for non local files.
"Delete Original After Copy" is a switch (set to off)
"Create Subdirectories For Songs" is a switch (set to on - I want this for non-local files)
"Add Unique Id to Filenames" another switch (set to off)
Finally there are a couple of settings regarding Dropbox and Google Accounts and drive integration

Where is there supposed to be 'let MSP manage my files'?
Or could this be a specialty of the Windows 10 Version? (possibly version 1.9.2?)

re 6) Yes, that I have understood. My proposal regarding an arbitrary number of tags is different and AFAICT goes beyond that.

Thanks for helping me.

Kind regards,
Michael