the problem is that the 8:1 switch has a reverse, when its acitvated the two ADDR-seq do not revers also, they continue to move forward, so in order to backword the entire system of 2 addr-seq and 8:1 switch i would guess that the clock needs to be reversed?
Shift masterclock back and forth? - VCV Rack - VCV Community
there is a thread but it seems as this may not be the solution: zzc’s clock can be synced from an external pulse and by using zzc’s FN-3 with a square with a diminished PW you can shift a pulse forward or backward in time relative to the main clock.