The position of the Loading Cube including the model in the room can be modified by aiming at it via Far Interaction or by grabbing it directly with the hand via Near Interaction.
Once you are satisfied with the adjustments, it is time to fix the object in place. By clicking on the white tick in the middle of the Loading Cube via Air Tap or Near Interaction, the model is fully imported to AR 3S and the Loading Cube will disappear.
Of course, you can still manipulate the object even after the loading process has been finished. The necessary features for this can be found in the Interaction menu.