Lines Per Beat

If lines per beat is 4 and then like for a particular passage, I want faster notes, I can’t change lpb to 8 since that affects all the patterns. I don’t want to set lpb to 8 cause for most of what I’m doing it would be too many lines. How to cope?

As per the user manual (lots of good stuff in there), you could use the F1xx command to change the LPB to 8 for that section of the song, and then move it back to 4 when the extra resolution is no longer needed.