There are 3 regions on nearly every page where you can add your own freeform content:
To add fully customizable information to a page, click on the menu labeled "Custom" then "Customize this Page."
A page will open where you can select the area of the page to add to or and item to edit or delete.
On the editing screen, you will be presented with a full featured editor that allows extensive page formatting: fonts, colors, tables, etc. You will have several options that control who can see the custom content and when it apears.
After editing the content, click "Update Custom Header" to save the changes. Hover your mouse over the symbol for more info on each option.
To add a link to another page or document:
RefTown Knowledge Base