It would be very useful if multiple crates (or sub-crates) could be selected and these tracks will be shown.

e.g.
Currently my crate "Disco" is splitted into the sub crates "Dance, Party, Love, NRG, Downtempo, Funk, Soulful Dance".

During night e.g. I want to select the sub-crates Dance + Party - or e.g. Disco/Dance + Synth-Pop/Dance) and the tracks of the selected crates should be shown (from where I can choose which one to play, etc.).

Thanks
(Feature request while using SSL 1.9.1)