Short
Adds the given two-byte short to the end of the response.
The short can be signed (-32,768 to 32,767 inclusive) or unsigned (0 to 65,535 inclusive).
Note this is affected by the endianness, set by the On request > Add to response > Binary > Set big endian and Set little-endian (default) actions.
The parameter you pass will be in little-endian, but Webserver will swap the bytes if it is set to big-endian.
Read more about endianness here.