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Blueprint Graph Editor UI

I’m looking to make some modifications to the Blueprint system to make what I think would be a useful extension. I’ve been digging through the source code but if someone could point me in the right direction I could make progress a lot faster. :smiley:

Basically what I need to know is:

  • What blueprint nodes are in a graph
  • The location and sizes of the blueprint nodes
  • What nodes have connections to other nodes
  • What controls the UI (Menu and Buttons)
  • (optional) What “notch” a connection is made to.

Any suggestions on where to start looking?