How to use Kraph:

• double click on empty space: create a new node
• double click on a node/edge: edit data of node/edge. Clicking out of the window saves the data
• click on node/edge: selection
• click on empty space + drag: selection
• click on empty space: deselection
• click on selected entity + drag: move
• ctrl+click on selected entity + drag: create a new node, child of the previous one
• left or right arrows when edges are selected: toggle plugs on and off