amcharts maps PR polygon

Quiero eliminar las islas marcadas en la foto, pero son parte del poligono mayaguez, si quiero el que aparezca mayaguez pero solamente quiero eliminar esas islas que no me sirven I want remove this islands, but are part of the same polygon. the Id is “PR-MG”

Another example

I tried exclude the polygon, but i need the part in the map, so if exclude this polygon disappear all.

// Create polygon series var polygonSeries = chart.series.push( am5map.MapPolygonSeries.new(root, { geoJSON: am5geodata_puertoRicoLow, exclude: ["PR-VQ", "PR-CU", "PR-LZ", "PR-MG"] }) );