You can select a photo and right-click; then choose to make a copy. When sync completes it should be possible to drag the new copy into any album in Lr CC.
So this means that there are no Virtual Copies in LR CC only copies which in themselves are actual image files in storage?
Yes that is correct. In most situations the copy will be a smart preview unless the original is stored locally.
ok after finished sync, I can copy a picture with rightclick.
But now I see two identical pictures in filmstrip, but I can not differ it. No new filename are shown. What is the source???