Since I couldn't find anything on the official website, I suggest downloading the PDF file which provides the necessary information related to database management (but your Centaur Access Control System). From that I saw in the user guide, the database management part is done only on the server side which means that you won't have the possibility to use the client to manage it.
Download the PDF guide and install a PDF reader if you don't have one installed on your computer. You can find a list with these programs by following this link.