From the Main window the current user has an access to windows of particular experiments, can add, remove and view its configuration files, configure and initialise the hardware, and has an access to the Material and Sample entries in the database. One can also change the current data path and also set the preliminary sample temperature. In order to change the current user one has to return to the Welcome window by choosing the Configuration/Switch User… menu.
More:
3.2.1 Configuration files and their list