Unable to add tags and keywords to static pages

Hi,

I don’t seem to have the option to add tags and keywords to any static pages (manage -> pages) within my website.

The option is available in blog posts (manage -> posts), just not in the static pages, which is the main component of my site!

I’d be grateful if anyone can advise me of what I need to do.

Is it an option I need to turn on, an add in I need use, something else?

Any help greatly appreciated.

Thanks