[ownedbycats]

You can create a virtual library and set Preferences > Behaviour it to switch to that.

Personally, what I would do is use the Reading List plugin to add the current books to a list that uses the 'store in series column' of a custom column. Then base the VL on that column.

This would mean that instead of changing the VL search every time you switch, you just add and remove books from the reading list as needed.