I want to have the title of one page of my Wordpress blog "Custom Wordpress Themes - Design Services" - I want this text to appear in the title of the page. However, in the menu links I want to appear a different text ("Design Services"), as "Custom Wordpress Themes - Design Services" is too long for a menu link. It wouldn't fit into my menu bar. It is this page of my site: http://wpmix.com/design-services/ - I also want the permalink to stay just "design-services". Is there such Wordpress plugin that will allow me to do this? Or should I somehow edit my Wordpress theme for this reason?
you can use SEO plugins for this sort of thing like all in one seo, yoast seo and much more. If you just want only this page to have a title like that then you can edit your theme header that will be the simplest to do.