PPPoE, burst, Radius and daily hours

Hi,
in PPPoE+Radius scenario, I need to have two specific burst policies in queues: the hours when congestions are more likely, and the rest of the day.
I understood that it no possibile to get from Radius different burst queue policies based on daily hours, and I don’t want to disconnet PPPoE, trought script.
Is there another way to realize it?

If not, I would like to request Mikrotik to implement this feature.

Thanks.