_setXPaths(value) {
      self.start = value.start;
      self.end = value.end;
      self.startOffset = value.startOffset;
      self.endOffset = value.endOffset;
    }
Main method to detect HTML range and its offsets for LSF region
globalOffsets are used for:
- internal use (get ranges to highlight quickly)
- end users convenience
- for emergencies (xpath invalid)