Feature Available? Setting Queue Options via Dialplan?

I’ll tell you what I’m trying to do. Let me know if this is available.

So you know how you can do this within the dialplan:
Set(MONITOR_FILENAME=foo)

Well, can I set which periodic_announce file is played, from the dialplan? Like so:

Set(PERIODIC_ANNOUNCE=foo)

If not, what would it take to set this up? We have several hundred DID’s going into one or two queues. And it would be nice to have a different announcement per DID. Unless someone knows a different way of doing this.

Thanks for your help.