Ok, regarding the lights i´ve found the solution.
You could keep the MAXlights. Just exclude the ecoProxies PLUS the VueScene!
It seems to be that the VueScene is the important geometry to exclude.
Do the same for the VUEatmo. Just include this time all the proxies PLUS the VUE Scene.
Now all the MAXlights will lit the MaxGeometry and the VUE-Atmosphere will only lit the VUEplants.
Good to know.
Only one Problem is left: MR rendertimes