Make a group (rightclick on empty space, make group), put all the nodes inside it, rightclick on the upper part and 'catch nodes'. Then with all still selected move your mouse down over the nodes, rightclick and 'save nodes as clip file'. It should then say; '9 nodes saved'. Or 2, 5, or 21 of course. More or less is this what you should do. If you then insert a clipfile and look it up, it should be there.
---Dune