(continuing my message from above)
i just find out that blender exports groups. that's great!
but i don;t know why , when i save the .blend file (that i have put a link to) as 3ds or DAE or Obj, for some reason the green objects: sinks , tub etc, are not showing into Sketchup, where i want to import them. Do you have any clue why ?
or what should i do with the green meshes in order to transform them or something into a exporting entity.