What would this look like? What would I replace Explosive Shot with in the first macro?

Code:
    
main      dps
     #show Expolsive Shot
     /click MultiBarRightButton1
     /click MultiBarRightButton2
     /click MultiBarRightButton3
     /click MultiBarRightButton4
button      1
     /castsequence reset=combat Hunter's Mark,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
button      2
     /castsequence reset=combat Black Arrow ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
button      3
     /castsequence reset=combat Serpent Sting,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
button      4
     /castsequence Steady shot,
     /cast Explosive shot
I am tired of my hunter being last or just ahead of my tank and spriest.