[Feature request] copy nodes

[disconnect3d]

It would be nice to be able to select and copy multiple nodes in node tree, e.g. here:

I would like to copy chunk 50 and all of its content by selecting all the nodes. Example output:

chunks[50]
length = 0x00000000
type = [0x49, 0x45, 0x4e, 0x44]
data = []
crc32 = 0xae426082

Imho it would be enough to copy just node name and alue and leave the comment and position (or have it as a checkbox - what is being copied?).

It would also be nice to have a possibility to dump nodes into json (with all data that is there).