Dear don17,
If you are talking about adding a new dialect for data sources, the current version of Knowage does not provide this functionality.
If you want to contribute to Knowage you can create a fork of the project, make your changes and the send a pull request. Otherwise, if need for some professional services, please contact Knowage team (https://www.knowage-suite.com/site/about-us/knowage-contact-us/).
Greetings,Alberto
