To create an anchor link to a location within a page:
Place your cursor at the spot where you'd like the anchor to be placed and click the Anchor button in the toolbar.
Enter a name for your anchor and click OK. Note: Remember the exact ID of the anchor or copy it somewhere; you'll need it for the next steps.
If the anchor isn't in the same page as the anchor link, edit the page you'd like to contain the link to the anchor.
Select the text you'd like to link to the anchor and click the Insert/Edit link button in the toolbar.
Leave the link type as "Internal", click the page chooser, and browse for the page containing the anchor. For anchors in the same page, this will be the current page.
In the "Anchor" field, type or paste the exact ID you used when creating the anchor. This will append the anchor ID to the end of the link URL.