If you mean add a delay before the response is sent, use a timer. See "
/help /timer"
Example:
.timer 1 3 msg $nick TESTING!
That is a timer that will wait for
3 seconds before sending the msg
1 time.
The period before '
timer' prevents mirc from displaying
* Timer <X> activated and
* Timer <X> haltedon *:text:test:?:.timer 1 3 msg $nick TESTING!