My questions about the sequencer (still didn't figure out nor found in manual):
OVERDUB-MODE:
Okay, this is very nice to use to build up for example the drum-pattern. So easy to record hihats after recorded the kick.
Question: If I record for example the hihat after recording the kick, but I am not satisfied with my hihat-pattern, how can I erase just the hihat sound without losing the kick ?
OVERWRITE-MODE
Okay, the name says enough. What happened to me is that I made a drumtrack in overdub-mode. Then after that I recorded another track (let's say bassguitar) and then got an idea again to add to the drum-pattern.
Question: But I forgot to switch it back to Overdub-mode and then I lost the whole drumpattern (at least in those measures) as I recorded the addition from the 1st count. How can I undo that, how can I keep the drumtrack after the ' overwrite-mistake' ?
Thank you !

CJ