Links can be inserted into editable regions using the editor helper.
Clicking the insert link icon brings up the insert image pop up, here there are three ways to enter a url to create an on page link.
The default tab is for manual entry and to enter additional details about your link. To link to external websites enter the web address in the URL box.
Existing pages can be linked to by browsing to the correct category and article. The search feature can also be used to identify a page via a name or tag. Selecting a page will bring you back to the Link details.
Resources such as pdfs may also be linked to within a page. The 'link to file' tab will allow searches of existing resources and new resources to be uploaded.
Once a link has been selected it must be given anchor text. This is the text that a user will click on. Optionally a title may also be entered which will be visible to users when they hover over the link.