QSlider: is that possible to partially disable step markers and add labels to markers?

[mas]

I want to disable a portion of markers on a q-slider but still keep them displayed rather than just chopping them off with max/min properties. For instance, having 24 hours on the scale but only 8:00 - 16:00 enabled for sliding. I wonder if that’s possible and if not that could be a useful feature. Also, i don’t see a way to add labels to markers, just the slider itself.

Thank you!