A Little More Information ....
Are you wanting to see multiple locations on a zoomable map? Can you point to an example where you have seen anything like this before?
This "map url" action is a most common scenario, used in AS tutorials all over the web and in popular books, but I can't recall ever having seen the online map interfaces accepting multiple locations - except, perhaps, in "From" - "To" scenarios, with points in between, for trip planning, etc. Is this what you are trying to accomplish? How would you click on multiple Postal Codes in AS, if they are members that are displayed individually? Do you need to pass a higher level of convergence? If so, it would need to be something that the map application could recogniize and accept ...
Sorry if I'm missing something obvious - get back with a little more detail as to what you are attempting to achieve, and we'll try to help further.
Thanks!
Bill
And fom the Perspective of "How?"
I came across this in an unrelated project today ...
http://www.ssas-info.com/analysis-se...nd-multiselect
See if this approximates what you're trying to do. OPENROWSET might be of interest.
Good Luck.
Bill