Yes. But it was genuine testing Jassi.
After 8 years most people of BOTH sides (except me) still don't believe the shutters were opened from outside.
So it should be no surprise that members of the group that night also doubted it was true - hence the tests.
FP tried lifting the parent bedroom door shutter, because she thought that to do the same test on the child bedroom shutter would disturb the 2 remaining children (source FP rog).
IMO the shutter being opened before 9.30pm disturbed the first child with the obvious consequence that she went to another room and did not return. This simple event completely explains the disappearance of the child from the child bedroom.
The bedcovers, Pegasus. Too neat & in the wrong position for a child who had left the bedroom in a panic.
Kate said Madeleine was under the bedcovers when she was put to bed.
GM said she was on top of the bedcovers when he looked in at 9.10.
Why would Madeleine not get back under the covers if she'd popped to the bathroom? It was a chilly night.
I think Madeleine had already been drugged by the intruder and lifted out of bed but that person was then interrupted by GM's unexpected check. That intruder placed Madeleine back on top of the bed to give the appearance she was sleeping & the intruder hid, most probably in the parents' bedroom.
The window was opened from the inside, no question in my mind. Entry & exit quickly & quietly via the front door.