Please forgive if this has been raised and I have not found the thread. I have posted in the tech forum, but figured posting an official feature request would be appropriate.
If Seq can receive a note and transpose accordingly, then can Arp listen for notes from an external midi source and apply these - paying attention to the order of notes?
1. A chord sent from an external hardware keyboard, possibly with a range greater than the inbuilt keyboard
2. I imagine there being some software uses here, adding a feather to the cap
3. Some amazing things could be achieved!
Please look into this