How can Honorbuddy do Rain of Fire on a target

[kallen]

hey guys i?m running the Buddy on my warlock atm.
and i saw that it can cast rain of fire on a target without mouseover or anyhing.
how does this work?
could i use this command for a macro?

 

[Boatswain]

not for macro

 

[kallen]

and over Keyboard or mouse makro also doesn?t work?

 

[Stormchasing]

nope

 

[kallen]

ok thx