Good day Dan,
I'm sorry for keeping you waiting. I did not get some notification on the forum.
I wondered if there was a way to provide the data source to HandsOnTable so that it can display one value, and 'filter' by another.
The filters API work only for the
data that is provided. Here https://jsfiddle.net/60x43Lan/ you can see that I've changed the data with a custom renderer but the filters are showing what we have in the source data. So yes, partially you can show something else than the data being filtered. However, you cannot pass a different list of values that the once in the source data.
Af far as I understand you could also manipulate the length of the filters list by CSS.
Can you share a fragment of the data and the desired cut?