Enter to switch between modes :

• Selection (default)
  • a add child
  • d delete
    
    
  • y copy 
  • p paste
    
    
  • s Overwrite
  • i  Insertion
    
    
  • g <num> <enter> goto node
  • e/b navigate nodes
    
    
  • <Shift> j <num> <enter> Join/Connect 
  • <Shift> x <num> remove connection from 
    
    
  • t toggle border/borderless
    
    
• Translate
  • H/J/K/L keys to move the node around

<Esc> to deselect

• a add child at cursor
• g <num> <enter> goto node

o load vigraph from system
w save vigraph to system