Allow putting any widget on the map

[martinRenou]

There is currently the possibility to put any widget in a Control, but it is not possible to put a widget on the Map with a given (lat, long) position.

This could be achieved by adding a new Layer type (Placeholder? WidgetMarker?) that makes use of https://leafletjs.com/reference-1.7.1.html#divicon for putting the widget on the map with a given position,

[giswqs]

This would be a nice addition.

[martinRenou]

Any thought on a name for such a feature? A few ideas: WidgetLayer, WidgetMarker, Placeholder

[davidbrochart]

WidgetMarker sounds good to me, as it conveys the idea it will be positioned like a marker, but it's a widget.