This is for CT7.3

How do you delete just the leftover track after you "break" the clip. Every time i break a motion track and try to delete what i don't want it deletes my vocal track along with eveyrthing else. I've tried highlighting the track i want to break and delete. I've tried to right click on the leftover track. Nothing works and i have to undo the last action performed or else i lose my vocal track. also how can i edit my talk track (TTS). I can't find it as a wav. file. What if i want to change the text I shouldn't have to start all over. Thanks for some asst. I love this software and what it can do but right now i feel dead in the water.  Mark