With Theme 500, to make a page specifically for blog posts, you use the Page Template built for it, called ‘Blog Page’. Then, you can link to this page anywhere you need to.
Create a New Page
Give your page an appropriate title
On the right, under ‘Page Attributes’, select from the Template dropdown ‘Blog Page’.
You may link to this page from your Menu, and you can also assign this page as your Posts page, in the Reading part of WordPress Settings.