You can highlight your nickname with the color u want and the sound you want like when anyone calls your nickname on the main or pvt or any place you are in.
Go on top bar choose Tools ---> Address Book ----> Hightlight
Then mark Enable hightlight and then click on Add
At highlight lines that contain these words: type $me it stand for ur nickname whatever it is ...
then choose on color the color you want and on sound the sound u want .... but make sure at sound it only accept .wav file ...