Using your documentation entered following shortcode onto page:
[mashup query="page_in=74,92,110,120,129,136,872,900,906,3019"]
it displays a map with all pages that have maps in addition to those listed above.
If I use [mashup query="page_id=74"] the map displays the POI for the one page.
If I use [mashup query="post_type=page"] the map displays all pages which have POI.
So for some reason the mashup short code to display specific pages is not working. Any suggestions.