[itsme]

In the setlist editor every song has a button at the left showing up/down arrows. With your finger on this button you can drag a song up and down as desired.
IMHO this functionality reacts a bit "nervous", but this might be specific for my tablet.
@Mike: persistent filters do not work in this context. When I jump between setlist editor and setlist view, the filter setting that I set in setlist editor is lost. It's a pity as I do this frequently when I create a new setlist