Autoscaling of different WorkerGroups

Hi,

I was wondering if there is any plans for allowing to define autoscalers per worker group, I think this could be quite a useful feature.

E.g. in our case we have two groups, "low-mem" which is the default group and "high-mem", the service picks the workers based on guessed workload. Small tasks go to low-mem, big tasks go to high-mem.
We then have an autoscaler, but as the docs states, only the default group is auto scaled.

Our current solution is to have to clusters and pick between the two, but maybe I'm missing something?

Cheers