/cline [c] <@name> <N> changes the color of the Nth line to color C
That says line, not letter.
Example (nicklist #test):
@killer
JoeUser
/cline 4 #test 1
@killer
JoeUser
What he wants:
@killer
JoeUser
(i.e. /somecommand [color] <window> <line> <letter range; 2,3-5>)
/somecommand 4 #test 1 2
@killer
JoeUser