Filter transformation

Is there an out-of-the-box way to perform mapping of `DataGrid` values to filter values? I have a year column which I'm wishing to aggregate in the associated multi-choice filter as decades. I've taken a look at your sample `MultipleChoiceFilter` and `DataGridFilterColumnControl` but I can't see anything obvious.

It's easy for me to build this in a non-reusable fashion - populating the filters values explicitly - but it would be elegant if I could instead provide some sort of two-way mapping class.