Following the most recent release of the SONOS app, I am now unable to run it on my mobile. However, initially the version for Wndows 10 functioned and allowed me to change the location of the Apple tunes database. However on reverting back to the original location, I have found that most of the Manage column is greyed out and there is absolutely no way of specifying any database address on my network. 

The upshot is that I am now unable to run anything on what was originally a good  music setup.

How can I make the greyed out part operate in the expected manner?