i think i now why there isnt a greeter in the MO
look the greeter has a line as a motion detector, but if there is a line in a 3d world you can easly avade the line, but i have an "good" idea, look the line can be rplaced for an streched out line like this lllllllllllllllllllllllllllllllllllllllllllll only sticked to eachother, while its circling aruond the greeter.
like the idea
???