I wish I could change your arpeggiator as you suggest, but now it is impossible to do 
it could give us some inspiration and see how you proceed for your creation. 
Arpeggiator modification
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I wish I could change your arpeggiator as you suggest, but now it is impossible to do
it could give us some inspiration and see how you proceed for your creation.
I'm sorry but I think I don't fully understand your post.
You can change the arp pattern on a Virus TI2 as they are user programmable per patch.
Should be easy to do: Connect it via USB and go to the "ARP" page of the VirusControl software. The manual can be found in the download section on the virus page.