Can you choose the same option twice for Incendiary Command?
No. If you could choose the same mode more than once, the card would explicitly state that (e.g. Righteous Confluence).


  700.2d If a player is allowed to choose more than one mode for a modal spell
  or ability, that player normally can’t choose the same mode more than once.
  However, a few modal spells include the instruction “You may choose the same
  mode more than once.” If a particular mode is chosen multiple times, the spell
  is treated as if that mode appeared that many times in sequence. If that mode
  requires a target, the same player or object may be chosen as the target for
  each of those modes, or different targets may be chosen.


Source.