I'm not sure what's happened with the motion detection in the latest version of firmware for AcuSense G2 (G3 5.5.135) but it's been fouled up monumentally.
In earlier firmware (possibly 5.5.131), the motion detection was drawn as a polygon (rather than enabling a range of cells) but the firmware only allowed a 4 pointed shape. To cover irregular areas you would need to draw more than one (up to 4) non overlapping regions. There was an issue in this version where if you drew for example 3...
G3 AcuSense Firmware 5.5.135 - Motion Detection Issue
In earlier firmware (possibly 5.5.131), the motion detection was drawn as a polygon (rather than enabling a range of cells) but the firmware only allowed a 4 pointed shape. To cover irregular areas you would need to draw more than one (up to 4) non overlapping regions. There was an issue in this version where if you drew for example 3...
G3 AcuSense Firmware 5.5.135 - Motion Detection Issue