Before Office 2007, Microsoft Word's buttons were arranged ... For example, you can't add a button to set a specific line spacing value. If you can't add the button, no option to "Add to Quick ...

Instead, you should adjust the paragraph's Spacing After setting. Here's why. Before considering how your paragraphs are spaced, you should always display Word's non-printing characters.

Word Online doesn’t support special-character searches yet ... newer versions of Word automatically add white space between paragraphs using a Spacing setting (more about that later).

In simple words, with Double Spacing, you add a full ... Double Space button, and then click OK. Formatting for the entire document changes to double spacing. Microsoft Word defaults to a spacing ...