How to specify 3 columns in a swagger editor so the output should look like:
a b c x y z
swagger: '2.0'
info:
description: >
This is a sample server Petstore server.
[Learn about Swagger](http://swagger.io) or join the IRC channel `#swagger`
on irc.freenode.net.
For this sample, you can use the api key `special-key` to test the
authorization filters
**Here I want to specify 3 columns**