You can turn off the default behavior using the shortcode parameter sort to “false”.
If the default sort is turned off, you can use the WordPress order and orderby parameters in queries to sort your posts by various fields including author, date, etc. For example to sort all posts by date, descending:
[mashup query=”orderby=date&order=desc” sort=”false
Yes, that setting opens the first POI in the list and brings it forward above the other markers.
It’s not possible to open all the POIs at once as you asked earlier, nor are there marker labels. However, if you hover a marker with your mouse, you’ll see its tooltip (its title) if you’ve enabled tooltips in the settings.
I have one POI per post and want to order the layer they display as less important points are overlapping important points. I have attempted to code it so it displays the newest post at the top. The only way i have been able to reorder is to change the slug of the category which is a bad solution