Currently it's possible to zoom in and out the map widget, but after you save the map and open it again for edit, last zoom level in the map widget is not preserved but instead the hardcoded zoom level is used (either from settings or GeoPanel(zoom=...)).

What I need is to set the zoom level dynamically for each map, so that different maps can use different zoom levels. When I save the map, I want to read the "zoom" from map widget and store it to the database for the map. When the map is opened for edit, GeoPanel should read "zoom" from the database and initialise the widget with that zoom level instead of the default one. Optionally, there could be also "zoom" field shown in the edit page if user wants to set it via text input instead of using the map.