In a scattergun kind of approach, I'm really only giving the clerk a list of names that I think would be suitable witnesses. I don't expect us to schedule all of them. I think we should all put forward our wish lists, perhaps, and then the clerk can try to choose a representative group selected from that main list. That's the way I have seen it done.
The only reason I'm outlining the details of this particular newspaper article is because I can't remember the company name that is associated with it, but I think the clerk would be able to track that down.