Please can someone explain why I can't get changes to Templates to show up on the final output? Your help would be most appreciated. Many of these templates were set up by the initial developer.  I can see how to add resources in the Template, which show up on the article page but then won't preview. I must be missing a step somewhere.
An example would be to add a Subtitle under the main heading. Adding a resource page_subtitle  as text or HTML area. This appears on  the page as a content box, which accepts the text. However, publishing or previewing does not change the output.   Related to this is how to change the preset  font size/colour in the page output for each setting- Heading, subtitle.  Thank you.