To Use the option (⌥) key, set it as meta key
⌃a
: Go to the beginning of the line⌃e
: Go to the end of the line⌃p
: Previous command (Up arrow)⌃n
: Next command (Down arrow)⌃f
: Forward one character⌃b
: Backward one character⌃xx
: Toggle between the start of line and current cursor position