Midi Track Groove Per Voice

[skybox]

Maybe this is too much of a specific case use but I currently use a midi track to sequence an external drum machine and I was wondering how possible it would be to add Groove settings for each of the 4 voices.  I really love building fills where the snares have a heavy swing but everything else stays straight and there currently isn't a way to make that possible as far as I can tell.  Maybe adding a Groove value in the velocity column with Shift + OK that overrides the main groove at the far right?

Thanks as always!!