iterm2: setting keyboard shortcuts to jump to beginning/end of line

Add new keyboard shortcut in Preferences > Profiles > Keys:

FOR  ACTION         SEND
⌘←  "SEND HEX CODE" 0x01 
⌘→  "SEND HEX CODE" 0x05
⌥←  "SEND ESC SEQ"  b
⌥→  "SEND ESC SEQ"  f