1. CREATE CMS BLOCK with the content you desire (Ex. About Us)
2. CREATE A CATEGORY and in the URL KEY put the CMS BLOCK identifier.
3. CHOSE IN CATEGOTY-DISPLAY SETTING: Display Mode-Only CMS Block CMS BLOCK-The CMS BLOCK you want to link (Ex. About Us).
Thanks anyway for the others solutions gave me.
Graet theme, so far work perfectly with Magento 188.8.131.52