Regarding polygons, is that because you're concerned about the performance? Those islands are extremely light, so increasing the details shouldn't cause issues. (on the other hand, adding many polygons in e.g. a Manhattan scenery would definitely be a concern).
Regarding your question on the ORBX vessels (actually made by Seafront Simulations), you can check for yourself, the add-on is free! https://orbxdirect.com/product/seafront-channel-isl
Regarding your question on the ORBX vessels (actually made by Seafront Simulations), you can check for yourself, the add-on is free! https://orbxdirect.com/product/seafront-channel-isl
