Can we tab target enemy and cast same button

[suicidesspyder]

Trying to get this to work for my hunter. I would like to when i hit action button 1 to cast hunters mark send pet which it does but also if the target dies be able to hit the one button again and it targets next enemy. Like 2 clicks on it one targets and hit it twice it will hunters mark and send pet. If that makes sense. As of now i hit the one button once and it marks and sends pet in. Just need a second click to target. Not sure if its possible or if i just have to keep hitting tab. Dont like the idea of my pet always coming halfway back to me if i dont have to.

[Khatovar]

/targetenemy [noharm][dead]
/castsequence blah, blah, blah

[suicidesspyder]

ah sweet thanks so much makes being a huntard so much easier