I'm trying to create a new button to assist F2 from my group

[Movered]

I'm trying to create a new button to assist F2 from my group

Is there an easy command for this, so that I dont have to put the players name in each time?
/assist {playername}

I was thinking something along the lines of

/assist F2 {cant figure out the F2 part}

or

/target F2 {cant figure out the F2 part}
/assist