Graph construction
- Nodes
- Adding a node: left mouse button
- Deleting a node: press keyboard DEL or press right mouse button
- Selecting a node: left mouse button
- Moving selected nodes: drag the mouse with left mouse button pressed
- Lines between selected nodes
- Adding a line: press keyboard A
- Deleting a line: press keyboard D
- Cliques on selected nodes
- Adding a clique: press keyboard A
- Deleting a clique: press keyboard D