User talk:Doncram/sandboxSonomaBigMap

Further test. Is it possible for the data tables to be collapsed or hidden in any way, yet for the data to appear in the linked OSM map?

Here is an example of a table that is collapsed by default, adapted from one at Help:Collapsing by addition of coordinates for the two cities. When it is collapsed, does the "Map of all coordinates" still show the locations?