code: function AddDetectorToSubEnvironmentOnly (detector, force = false, subEnvironment) {
    return em.AddDetectorToSubEnvironmentOnly(detector, force, subEnvironment)
  }
docs: Adds a detector to a SubEnvironment. Assumes that the main Environment is a MultiEnvironment.
  @param {object} detector is the MotionDetector object to add.
  @param {boolean} force can be set to true to push the detector even if not of {MotionDetector} instance
  @param {string} subEnvironment is the Environment to add  to, within the MultiEnvironment
  @returns {Boolean} true if the detector is successfully created.
  @public