LittleGazoo wrote: It worked for me. Thank you.

Use RM to build the AT5 raster map, then use Navico's IMC to build a Photo Overlay AT5 aerial map. Both must have the identical map-name. Photo Overlay will allow you to adjust the photo transparency.

RM AT5 Raster Map will be base-layer & IMC Aerial Map is rhe overlay.

A Google Earth shape won't include any background imagery. The best way to include background images in ReefMaster is to use something like SasPlanet to export images in the MBTiles format. This is a bit of grey area legally so I won't link directly but you should be able to find out plenty if you search.

Hi I’m trying to add a background layer or google earth polygon to my lake map. I only seem to get the shape of the polygon around the lake, but no background. Any help would be greatly appreciated. Mark

SASPlanet can create waypoints & tracks and offers Navionics, Google Earth, Bing and other backgrounds.

I would recommend naming all waypoints then use Reefmaster Waypoint Manager to produce the final Lowrance import file.

Reefmaster Waypoint Manager allow you to Split a Trail into Trail-Segments.
How about functionality to Merge Trails back into a Trail with Trail-Segments?

And I purpose RWM import and export Trails and Trails w/Trail-Segments using the following Google Earth structure and have attached KMZ and the expanded KML as examples of a lake with submerged roadbeds.

RoadBeds as Individual Trails.KMZ has the <Placemark><LineString> under <Document> where <Placemark><LineString> define each individual...