Hi hsteve. There are two ways to split text:
1. If you are editing a node and press enter, the stream will be split at the location of the caret/curser.
2. If you are editing a node and press alt+enter, the text will be split at every place there is a new line.
Note that /n/n is a regular expression that represents any new line. It's not something you have to actually add to the text.