Feature Request: Copying from one scene into another

[JulienTrue]

Currently it is possible to copy a Node and paste it.
I would like the ability to be able to copy the Node in one Scene (e.g. Copy MainCamera in Map) and paste it in another Scene (e.g. Paste MainCamera in TrainingMap).

[JirkaDellOro]

Implemented so far as drag&drop operation, please test

[JirkaDellOro]

copy, cut, paste also implemented, without multiple copies at paste

[JulienTrue]

I was a little confused at first since it didn't seem to work.
The problem was, that I usually only have one Graph Panel open at once, and switch between them when I open another Graph.

Lukas then showed me that I could have 2 Graph Panels open at once and dragging notes between them and copy pasting does indeed function as intended there.

I would find it a bit more intuitive for my way of working if it was also possible to copy a node, close the graph window to open another graph in its place and then still paste the node in there.

[JirkaDellOro]

For this, I need to overhaul the system and just started on doing so.