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- I want to add a new line after "the following things" as \n or other things are not working
]2
To make a line break in the 'Text Response' sector just press 'Shift + Enter'.
Para realizar un salto de linea en el sector de 'Text Response' solo hay que presionar 'Shift + Enter'
here you've used Dialogflow's web demo integration option which DOESN'T support multiple messages(lines) per response. This integration only supports single text responses.
You can use DialogFlow messenger integration if you want to add multiple messages.