Ask the pilot of G-WKRD , it is not that simple chaps and things can and do go horribly wrong. The easy answer is don't do it, the Engineers answer is that the machine is in it's best state of equilibrium whilst at flight idle and applying full frictions should suffice. please don't think that and SAS/Autopilot will prevent lifting/inputting just leave it as you would if you were sat on the ground at flight idle awaiting your pax.