(Theme: Twenty Fourteen) how do I put a (blog) homepage in menu bar?

I may be able to help.

If you want your “front page” (or home page, or landing page… the page people see when they first arrive at your site) to be recent blog posts, leave that option set to “Latest Posts” as you mentioned in your post.

It sounds like what you want is a menu item that points back to your home page. To do that:

• Navigate to your site’s dashboard and log in.
• On the left side of the screen, hover over the “Appearance” menu item and select “Menus” from the list that pops up.
• Here you can create a menu or edit menus that already exist (I suspect there may be no menu here, so you will need to click the “create a new menu” button at the top of the page.
• Type the name of the menu and click “Create Menu”
• Now you want to add the link to your home page. I usually do this by clicking on the “Links” dropdown menu on the left of the screen.
• In the “URL” box, just put a single forward slash (like this “/”). That will point to your home page.
• Then give it a name like “Blog” or “Home” or whatever you want and click “Add to Menu”.
• You will probably want to add some other menu items as well.

Now you need to make sure that your new menu is being used in your theme. To do that:

• Navigate to the “Customize” menu item under “Appearance” (it should be listed on the left side of the screen if you are still looking at the “Edit menus” section).
• You should be looking at your home page with a bunch of white menu items on the left. Click “Navigation” on the left.
• Use the drop down menus “Top” or “secondary/left” and select your menu from the list.
• Click the blue “Save” button on the top of that menu area.

That should be it! Let me know if you run into any snags.