How I get rid off "key sync"?

Hi.

I don’t what I did but now when copy my “midi notes” in track editor and adjust the new one, it changes the original bar also. How I can get rid of this? Sorry I don’t know the right terms for this.

Hi,
When you copy a event with drag and drop and hold down shift you make a shared copy. This means that what ever you change in the one event will also affect the other. To break this link between the part you can select all of them and go to “Edit–> Functions–> Convert To Real Copy”.