The invention relates to a medical apparatus for diagnosis and/or treatment using a procedure (20), with an operating console (11) to control the use of components of the procedure (20), the operating console (11) having an input device (22), an output device (27) and an assistance module (26) to assist the user, which can be adapted to users' varying levels of training. This enables the user interfaces of the operating console to be adapted to the varying levels of knowledge of the medical operating personnel, so that the user in question is offered only those commands, with corresponding additional information, which the user has for example already learned during training.