After you create or add snippets, you can insert them into any topic in your project. You can do this by using the Insert menu, which lets you search for a snippet, or you can simply drag an existing snippet from the Content Explorer.
How to insert a snippet into a topic using the Insert menu
Select Insert>Snippet. The Insert Snippet Link dialog opens.
Click the Browse for a Snippet button. Then navigate to the snippet file on your computer and select it. The path to the file is then displayed in the File field. You can see a preview of the snippet at the bottom of the dialog.
OR
Snippets in the 'My Templates\Snippets' folder This option displays all snippet files that are located in your custom snippets subfolder in My Documents on your computer (My Documents\My Templates\Snippets).
Note: In Vista, the folder is called "Documents" instead of "My Documents."

to save your work.How to insert a snippet into a topic by dragging it from the Content Explorer
to save your work.Note: You can insert a snippet within a snippet if necessary. To do this, simply open the snippet and then create a new snippet or insert an existing one.
Note: You can also import an existing snippet from outside your project.
Note: You can quickly insert a text hyperlink to a file (e.g., topic, image, snippet) in the Content Explorer. To do this, click and drag the destination file from the Content Explorer to the location in the topic where you want to insert it. As you drag the file into the topic, a vertical red bar acts as a guide to help you place the link in the topic. When you release the mouse button, the Insert Hyperlink dialog opens. You can modify any fields in the dialog (if necessary) and click OK to insert the hyperlink.