Yes; while in the node view, click on (while holding down the shift key) each node you want to save to highlight them - then, right click on one of them. You will get a list appear. Select 'Save as a clip file'. Give it a name and save it to your clip file folder. Then, in the future, just go to file> insert a clip file; and, it will appear in the node view. Then, connect to where you want it.
Bob