Support Question
How do I specify custom sorting on split-by/group-by entries in the perspective-viewer-datagrid?
Say I have the following

Where I'd like to sort the 18M, 1Y, 2Y etc. columns differently than the default string-sorting method built-in (one thats aware of the spans they represent). I tried looking for an example of this but couldn't find anything.
I'm interacting with this via Panel, which uses the Perspective Python-API under the hood.