I needed to attach verse 2 and 3 to the tenor line to get extender lines, and by default they appear below the stave. So I switched them to above, however I notice that the Y offset box does not populate correctly, and thus I cannot make a micro-adjustment that would require a fraction between the current default alt+arrow nudge amount. I can move the orange lyric up and down until the cows come home but the Y value never populates.
This is not in fact a bug, though I can certainly understand why you think it to be so; the Y spin box for the Offset property is never populated for lyrics, because you cannot adjust the Y position of individual lyrics. The Y offset you can apply in Engrave mode is not a property of an individual lyric, and hence is not editable via the Properties panel.
