I have 2 queues a and b. queue a and b connect to queue queue c. I am batching x amount of items in queue c using a global table. Is there a way to update the batch activity so that the batch requires 40% from queue a and 60% from queue b? For example, if i want to batch 10 items, then 4 items must come from queue a, and 6 items must from from queue b before releasing.