Support "go to time of the selected line" in the editor

[jacquesh]

If you want to change the timing of a particular line, you currently have to hop around a track to find the right time, then wait for the appropriate line and hit the "sync" button.

This entire process would be much faster if you could quickly seek to the time of the selected line (possibly -5 seconds or something).

It's not a super common use-case for me so it's certainly not a high priority, but it would definitely speed up the process when I do need to do this.

[ngs428]

This is a good idea. Select the line in the editor and have a button to have the song play from -5 seconds from that line.

That way when the line matches up with the song you can hit the existing button to set the offset and then hit the other existing button to apply the offset to the timestamps. I like it!