Ok, it sounds like you originally found the arpeggiator-send settings for MIDI, rather than the actual arpeggiator settings.

Also sounds like your menus are like my Indigo, the arp' settings are all on the far left of the CTRL menu.

At least you got there.

If you have a PC and a midi interface I will recommend SoundDiver again though, especially as you're using a rack with limited knobbage and lots of menu diving. SoundDiver was a free a graphical patch editor and librarian bundled with all the classic Virus models (A, B, C, Rack, Rack XL)





You can edit all the patch settings in realtime over MIDI, and the librarian function allows you to import, export and save patch-banks en masse, too. It's not a VST host, though, but there are other commerical software apps available which can control the Virus via VST.

Thanks again, I'll try SoundDiver.