Hi Peter,
Sure you can modify any page from your template. Just check into your C:\Cumulus\web folder
to find all the unprocessed page that you coul edit to your need.
A small thing, your system page seems to be renamed to be your main weather page,
as it is renamed to index.htm it is the page to be displayed when we type your url
(
https://www.ncifleetwood.co.uk/weather/) without a page name at the end of your url.
system.htm page has been created to be a hidden page, for your utility as a webmaster.
Nothing wrong to use the page as it is used on your site, but the real index.htm could be
a better place to insert your text.
Best regards,
Jacques