ONVIF control of the thermal DZ was never planned for the MIC-9000i in the launch of the product. However, you can get the Pan and Tilt via ONVIF Device Manager to work by enabling the PTZ configuration of the stream.
"Show VCA items" is a function which works in Internet Explorer 11 with the Bosch MPEG ActiveX installed. Due the end-of-life of Internet Explorer, this function is no longer available on Microsoft Edge.