[App_rpt-users] Output CTCSS Follow Input?

I seem to recall discussion of a setting that transmits CTCSS only when local repeater input or linked audio is being transmitted, and does not for ID, courtesy tone, etc. I've looked through the archives but have not found anything. I may just be confusing it with features of some other controllers. The reason I ask is a recent discussion on the other list ended with the answer of being unable to do it since there is not any code in all of asterisk/app_rpt to handle it. Thanks, Brett KQ9N