Hi All,
I am a total novice with CC, but  I am learning my way around however and the models look good in CC.  My goal is to setup, dress, and pose characters to export to render in Lumion.  I am having a problem exporting into Lumion using FBX files.   Model and textures come over but I cannot get the eyes to show up properly at all.  No matter what my settings are in CC (have not found best settings for export yet!), NO models come over with eyes in place.  Is there a workaround on this?

Settings in CC are mostly irrelevant. FBX format is not getting anything other than diffuse (base color), opacity and normal maps.
Complex DH shaders are basically tossed out on export.
While you can delete CC_Base_EyeOcclusion mesh before the export to have eyes to show up in Lumion (most likely the problem), your avatar would not appear anywhere close to the original.
Maybe it would be better to compose. Some users do a wonderful job with that: https://forum.reallusion.com/FindPost482549.aspx