Setting KMZ layer visibility in ArcMap?
How do I set the visibility scale for a line KMZ created from ArcMap (Layer-to-KMZ)?
I'm sure I would have to go into the KML code and add, but add what. That is to say as I zoom in and out using Google Earth I want certain layers to be visible and other not based upon appropriate level of visible details.
As commented by @Mapperz:
you need to edit your kml and add in Regions with Level of Detail (LOD) see https://developers.google.com/kml/documentation/regions#pixelrange