Search files with Catfish; In Thunar Edit>Configure custom actions>+>opens the editing...
Sparky Linux is an excellent distro, also from Poland. There is a bit of a difference...
Setings>Openbox>GUI Menu Editor and create a Games folder.
Just point the sources.list to stretch, update and dist-upgrade. It'd work.
Setings>Openbox>GUI Menu and create a Games folder.