One button - Pyro/Flamestrike

[Alnala]

Im not expert on macros, so I would like to ask you,
- sometimes in dungeons on packs I accidentaly (in battle rush) fire Pyroblast instead of Flamestrike on big pack of mobs, it is possible to create macro for one button (Pyro/Flamestrike) which will count active targets/ignite affected/range from main target or someting similar - and based on rule less than 4 - cast instant Pyro, equal/more than 4 cast instant Flamestrike?

Thank you for advice,

[macbeet]

No, the game prevents developers from doing different casts for the same gesture.