Thread:Project:Support desk/How can I modify the page tabs

Hi

I have my 1.19 Mediawiki that has page tabs look like this: http://s24.postimg.org/ep57u3uxx/screenshot_148.jpg

I want to add 'Watch' link as one of the tabs which should look like this: http://s8.postimg.org/jnn847cd1/screenshot_149.jpg

I googled the whole morning and couldn't figure out how. It seems the latter should be the default look of Mediawiki however I just couldn't get it. Any advice would be much appreciated.