Add Multi databases to one overall admin login for a Siberian CMS

We are currently using Siberian CMS - opensource: www.siberiancms.com. Siberian CMS provides a user interface to create mobile applications. The problem we currently face is that for each app we need to develop, we have to install another version of the software on another domain / subdomain. What we're looking to achieve is to be able to use one overall login for administration / Only one install to create multiple apps - as per [login to view URL] (sign up, you'll see the multiapp interface). This will mean adding some additional SQL table structures along with possibly amending the current structure slightly to reflect the addition of the "multi app view" admin panel and to ensure the ability to create a new app using the one Siberian install. Videos which detail the current development structure are available to assist you, however experience in SQL is a must. Thanks