Very important question! You’re trying to do a bank transfer, Zelle isn’t necessary since they’re your accounts. Cap 1 will allow you to link to other banks. For a desktop: log in, select the greyed our person button on the right, click “settings”, scroll to External Accounts and click “add external account”, tell it you want Transfers and Payments and follow the prompts from there.
After the account is verified go to Cap 1, click transfer & you can select trans to Memory Bank from Cap 1 and they’ll transfer the funds.