Objec of the activity is the MS HoloLens 2 mixed reality platform was integrated as novel user interface to the ESA Mobile Procedure Viewer system called mobiPV. Developed system was tested in two use cases: 1) MR supported installation of thermocouples on an Heat Plate used as GSE for the Solar wind Magnetosphere Ionosphere Link Explorer – SMILE, and 2) MR supported phase 2 sensor installation on TEDY (TEst DummY) for a vibration test campaign on the Hydra facility. All the test and reviews have been performed during 2021-22. The results of the study suggest that the developed MR-system has potential to become a useful tool for AIV/AIT applications.