With the risk of beating a dead horse (or however it is you're supposed to say that in English), I would like to know the possibility of the following change request be implemented.

The context: I organize my collection by Label and keep very strict track of catalogue numbers for the releases I own. I then sort my music by album so it is sorted by catalogue.

However, sometimes I want to sort it by label instead so all music on one label gets grouped, but then it will be secondary sorted by artist, and I would rather have it sorted by album (or whatever column I desire at that point).

So I would like to suggest a feature that allows for this behaviour: add an option to the configuration that lets you choose the secondary sorting column based on the previously selected column for sorting. So if I then want to sort by label, then album, then I first click the album header, then the label header and presto! This is common behaviour

This feature could be disabled by default for people who rather have the standard secondary sort by artist. Then people who want to sort differently could disable a checkbox in the library section of the setup.