Welcome is the start page for your SystemWeaver experience and where you log in to your SystemWeaver server.
Your Login options are presented to the left.
To the right is an embedded web page which will typically display general information about your SystemWeaver environment. (It can be configured). It works like most browsers; you can click on links; there is a minimal context menu for going back and forward and so on.
Use the Home button to get back to the start page. Click on About to view Version, 3rd Party and Extensions information.