line break in strings?

I know I can break lines in dialogues. But is it also possible to insert line breaks in strings? I tried "test\test" but when I use the string in a display text, the "\"just gets ignored. 

\n is new line, but I don't know if it would work with Lua script & displayed text. I don't think I've actually tried using it in strings, only in the scripts I use for writing data to external files.

thank you - i have tried this also. does work in lua directly, but not in displayed texts. probably have to stick to the automatic line breaks.