I would like to have this; the way things are set up now I think it would require an overhaul of the underlying smart contracts. I cannot say for certain, as admittedly, I haven’t seen a single line of our code. (I should probably remedy that soon…)
Perhaps there’s a way to compose some other primitive(s) to accomplish this rather than changing the underlying code? I’ve been saying we should use Sablier for distributing rewards… 
(I know, subtle as Chicxulub)