As in the title I really think there is no problem to have sub menus when composing.
WHY?? cause we are not gonna adjust sequences in live.
The SEQmode need more graphical improvements.
We need to enter on the single sequences deep like we do in step mode.
We need to see them in the little screen one by one and scroll them down to 64 track; and this is quite possible to imagine.
IN this way we may adjust the tracks, cutting or moving them inside the sequences. like you advice in the manual.
Cause 32 sequences are not enough, of course. By having this graphic possibility we may be able to adjust the track INSIDE the sequence without really adding more sequences.
WE need to ZOOM inside in order to see sequence by sequence how tracks are set