Mini Panel - Copy & Paste button

Why won't the entire node tree copy over, from one clip to another, when using the mini panel copy and paste buttons? When I use the COPY and PASTE buttons, usually only one of the nodes in the node tree copies over to the clip.
Thanks
Peter

That is what it is designed to do. Select a node, copy, go to a different node paste.

If you want the whole tree, grab a still and use that, or do a middle click function.

If the copy paste did the entire node tree, people would be asking "why does it do this..i only want to copy a node.":)