I have an audio narration I need to clean up using a clip of pre-recorded room tone. Is it possible to copy the room tone clip (in its entirety), highlight a section of the targetted track to paste to, then paste so that, regardless of the length of the room tone clip, only the targetted section length is pasted onto? At the moment the targetted area is being replaced by the entire length of the room tone clip, so that 30 seconds of room tone is added. I have approximately 6 hrs of audio to