There does not seem to be a configuration utility for Elisa. When opening Elisa's configuration, I just get "a configuration utility for Elisa music player local files indexer" as a heading. There should at least be a way to configure what is shown by Elisa there.
This is an installation bug. Currently, only some package are able to show correctly the configuration page (neon package). I will look into it.
Git commit b7658aef1dfaa0a5b83c1be95e798c9319d65d20 by Matthieu Gallien. Committed on 31/01/2018 at 17:02. Pushed by mgallien into branch 'master'. fix installation of elisa qml package for the configuration dialog M +1 -1 src/localFileConfiguration/CMakeLists.txt https://commits.kde.org/elisa/b7658aef1dfaa0a5b83c1be95e798c9319d65d20
Could you please test again with a build of Elisa including the commit described in the previous comment ? I have tested with a local flatpak build and everything seem to work again.
I am using the nightly flatpak, and now Elisa just crashes when trying to open the handbook. That is a different issue though, so I think this can be marked as resolved