Hi - I am stuck on the section where Gregor has to operate the docking clamps on the Essene to get rid of the fake boarding party (epic section in the book, he crushes one of the guys in the mechanism). I can;t seem to progress past a section where theres an ausepx symbol on the floor - I try to point the auspex at it but can;t get it to do anything. Have watched an online video where the guy gets it to blow up but can't seen to trtigger myself. any suggestions?

see this video - 1h 19 mins in ... https://www.youtube.com/watch?time_continue=4739&v=nh1v0tVjVCo