You can login to your Explara account, click on the Grid icon at the top right side to view all Explara Solutions and select Submix.
Once you are in the Submix dashboard, you can click on the "Create Submix" button at the top right side to create a new Submix page.
Provide the basic information required in the form to create the page.
Further customisation can be done by clicking on the "Manage" button on the Submix page.