Geospatial plugin - Help required with the PopupTemplate for a GeoMarker

Hello again

I am still trying to get my head around the Geospatial plugin.

I have created some simple GeoMarkers and I am able to display them on a map. I have been trying to get my around the format for the PopupTemplate for a GeoMarker. I have looked at the example ui/PopupTemplate at https://tiddlywiki.com/plugins/tiddlywiki/geospatial/ but have not been able to work it out.

Can anyone offer any help with this?

Cheers, Rob