To connect additional Xero organisations you will need to add a Payreq Inbox.
1. To add another Payreq Inbox click on right hand menu and select 'Add Payreq Account'
2. Enter the name of the new Payreq Inbox account and select if it is for a business. Then click the 'Add' button
3. After adding a new account click on the new Payreq Inbox in the list.
4. Click the spanner on the top right of the navigation bar and select 'Account Settings'. Click the 'Connect to Xero' button and follow the authentication workflow for the new Xero organisation.