Hello,
I created a feature request for the TMapView-Component (MapViewer). basicly its around the idea of getting a
plugin-management into the MapViewer to allow the implementation of minor extension, which would otherwise bloat the main component.
Request (ist actually a bug-report) is found here:
https://sourceforge.net/p/lazarus-ccr/bugs/66/.
You may discus there or here as well.
Best regards
Ekkehard