I think the docs explain it quite well.
http://www.blitzbasic.co.nz/b3ddocs/command.php?name=MoveEntity&ref=3d_cat
http://www.blitzbasic.co.nz/b3ddocs/command.php?name=TranslateEntity&ref=3d_cat
http://www.blitzbasic.co.nz/b3ddocs/command.php?name=MoveEntity&ref=3d_cat
http://www.blitzbasic.co.nz/b3ddocs/command.php?name=TranslateEntity&ref=3d_cat