Break Tag
From the menu go to: Insert > HTMLTags > Break.
Insert Hint: For non-existing text you can insert any HTML tags at the cursor location. For existing text, highlight the desired text and then insert selected tag.

The <br> tag inserts a single line break.

Example:This text contains <br> a line break

Results:
This text contains
a line break

Note: Use the
tag to enter blank lines, not to separate paragraphs.

Keyboard shortcut: Ctrl+Enter