WordPress Monsters

You can create templates (layout) for your pages to add some blocks of content before/after general content.
Also you can assign your template to custom post type(archive or single), taxonomies, 404 and search results pages, this options can be found in Templates->Settings menu in admin console.
You should use
<pre><code>[wpm-template-content]
</code></pre>
shortcode in this templates to separate content.
Watch how to use Template Manager plugin in this cute short video:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/jY2T-ZuUfSE?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>

Template Manager by WordPress Monsters

This is a temlate manager plugin for easy WordPress development from scratch when you are use Page Builders plugins.

mdburnette

Shape Dividers Plus extends Elementor with additional custom SVG dividers so you can create more distinctive transitions between sections.
The plugin adds new options directly into Elementor’s existing Shape Divider controls, including brush, geometric, paper, wood, tread, and decorative styles.
Key points: 
* Works inside Elementor’s native divider UI (no new builder interface to learn). 
* Includes multiple divider categories for different design styles. 
* Supports Elementor divider behaviors such as flip/height options (where applicable). 
* Uses optimized SVG assets for reduced payload size and better front-end performance. 
* Requires Elementor to be installed and active.

Shape Dividers Plus for Elementor

Add 20+ extra SVG shape dividers to Elementor sections and containers.

Template Manager by WordPress Monsters vs Shape Dividers Plus for Elementor