sorry typo, as I typed from cell while travelling. hope this explains
Customer Planner forecast proportions on the basis of which Stat T/D and Rev Budget dissaggregated are not maintained in a separate keyfigure. Your understanding is correct and stat and rev budg are dissaggregated on CP fcst.
Time based Dissagg is same for all K type based on KF weekly index.
There are no negative values.