[App_rpt-users] Tottime and macro

How would you do this. I would like to make a macro that would llink 2 node, remove time out timer and play a sound file to both nodes. Then another one that would unlink the 2 nodes , replace the time out timer to normal, and play a sound file to both nodes.. Well I think that the sound files would need to be first here... And is there a way to shorten the time between the end of a user transmission and the ct tone? Cant find the variable that set this.