This function sets the last change time of a device.
Parameter: device
Type: string
Description: This is the house code and unit code or device code of the
device, such as "A1" or "q17".
Parameter: date-time
Type: date
Description: This is the date and time to set the last change to.
Return value: none
hs.SetDeviceLastChange
"A1", now
hs.SetDeviceLastChange "A1", CDate("4:00 PM")