Looks like the dealz ended
There is a Huelabs addon that can snooze the motion detector. I haven't tried it though.
Mines holding on (just) to a nail holding the plasterboard up.
Sorry, realise that. But unlike the light sensitivity nothing much seems to happen. Just don't understand.
In the Hue app go to Settings, Accessory Setup then select your sensor. At the bottom of the page you can adjust the daylight and the motion sensitivities.