Download button has gone
Installation and Configuration
First is that block downloads setting.
ACP -> PROFILES -> AUDIO -> GLOBAL CONFIG -> GENERAL SETTINGS -> "Block File Downloads" = unchecked
That will make the download button show for everyone who is logged in because that's the default setting for that button.
You can change the default setting by using the
Item Action Buttons configure button to MODIFY the Audio button to also show for logged out users.
YOUR PROFILE -> AUDIO -> Configure these buttons -> Audio download button -> GROUP -> (no group restrictions)
and save.