If I have a tree with page titles such as

[Company] Home Page
-All about us
-Products we sell

I might want to generate text for the page NAV (via autonav) that was shorter, like

Home
-About
-Products

And I might also want to have different text for each page's <title> tag, for seo concerns... like

[Company] - We sell widgets and these products
- All about the Company
- Products we sell such as widgets, widgets and widgets

So really for each page I would like 3 separate fields.... What is the recommendation of how this should be done? It would be easy enough to use the page titles as the autonav text, and have the actual text on each page be a content block, but how can i explicitly specify <title> text?

Any advice would be most appreciated.

Thanks, Andrew