Managing unified navigation

Hi, I am building a site which has over 1000 pages already could you please let me how can I create header and footer, so if I change on the home page it gets updated all over the site.

Thanks Ankit Yadav

Go to the second video, approx. half through the video on number 9, that explains how to do this.

If you are new you should have watched the tutorial videos by now.