Let's say you have an Automation on your Zeta Joint Account to send funds to your Zeta Personal Account. You can now log in to your Personal Account and create an Automation there, using the deposit you receive from your Joint's Automation as the trigger. To be able to do so, you would have to have had at least one deposit from an Automation on your Joint to your Personal occur for it to show up in the Automation create flow as a trigger you can create off of.