Adding modules to pages is done by selecting a module from the 'modules area' and then dragging it onto the page:
1) Select module.
2) Drag the selected module to the 'main site area' and release it in a one of the place holders on the page.
3) Once placed, the module automatically opens, so that content may be added.
4) Add the content and then click 'save'. The module closes and the content is now shown on the page.
Any module may be moved, copied, deleted or edited later.