This one is also about categories, I've read other threads about this matter but haven't found a solution. In this way it wouldn't be necessary to code.
I've created a hierarchy with all the categories inside a superior one named 'ALL', so –as occurs in other filters in wordpress– when invoking this 'all' it returns the whole categories bunch.
But… this isn't working with the plugin. How can I make this work?
Also I will find very useful to maintain the filtering menu in 'list view', is this possible?