Please note that for this to work you need to have permissions for the Xero organisation to connect partner apps from the Xero marketplace.
In Datamolino you can connect multiple folders to one Xero organisation. After we have migrated to the new oAuth2 authentication the connection flow is a bit different to what you have been used to.
1. Initiate the connection to Xero from Datamolino
2. In Xero choose CONTINUE with already connected apps
3. In Datamolino choose the Xero organisation that you wish to connect