I would love to see a Shuffle mode added to the Arp. It’s different from Random because you can often have the same note in a series repeated multiple time, vs a shuffle that would just changes the order of the notes and only reshuffles once the note buffer is exhausted or changed.
input: ABCD
random output: AACA BADD CBAD CCCD
shuffle output: ACBD DACB CDAB ADBC
Good idea, noting this down in our todo 
I made the mythical TODO 
Hi,
wouldn’t it be then possible to add a mode to the arp pipe, users could set up by filling themselves the notes order and length they want with gate possibilities too ( blanks ) up to, let’s say 5 notes triggered?
Or add an option to the harmonizer pipe letting the user insert gates ( blanks ) ?
The point would be for exemple to use the harmonic generated notes in patterns more easily and freely. 
I’d look at the Blofeld and MicroMonsta manuals as interesting examples of programmable Arp patterns.
I guess my proposal matches with the intelligent timing arp thread 
Olivier, Axoloti ( pure data like modules like MidiHub pipes, with user tables used for arp patterns ), WT-01 ( dual arp with possibilities of setting gate and effects on choosen patterns ), HyperCyclic or Blue Arp are good examples as well
