Custom page title instead of Blog using Elements

I use GPP Elements feature to make a simple custom header to each page.

<div id="pghero">
	<h1>
	{{post_title}}
	</h1>
</div>

Unfortunately in Posts page there is text "Blog" in H1 even though a page with "News" title is acting as a Posts page in Settings - Reading.

I tried to solve this using a custom field "news" with a value "News", but with no luck.

<div id="pghero">
	<h1>
	{{custom_field.news}}
	</h1>
</div>

It does not retrieve the value, only prints {{custom_field.news}} code as text inside H1

Is there a simple way to use custom post_title value replacing the default Blog?