CONCAT(value1, value2, ...)
You can use literal text in quotes, or a {{fieldname}} from your form.
concat({{name}}, ' works at ', {{companyname}})returns something like:
Fred works at ABC Company Ltd
You can add line breaks with '\n' - eg:
concat('Hello', '\n', 'Goodbye')returns:
Hello
Goodbye
Similar to the concat() function in MS-Excel.