There are a few ways to insert a line break in a text editor. The most common way is to press the "Enter" or "Return" key on your keyboard. This will create a new line in your document.
You can also create a line break by holding down the "Shift" key and pressing the "Enter" key. This will insert a line break without creating a new paragraph.
Another way to create a line break is to use the "Insert" menu in your text editor. This menu usually has an option for "Line break" or "New line".