altessoft

The created custom block is
It’s just a custom block with an image on the left and a textbox on the right, allowing you to change the image on the left and the textbox on the right.
In addition, the smartphone display is arranged vertically.
This is a slightly unusual form of the layout element “media and text”.
<h3>Arbitrary section</h3>
You may provide arbitrary sections, in the same format as the ones above. This may be of use for extremely complicated 
plugins where more information needs to be conveyed that doesn’t fit into the categories of “description” or 
“installation.” Arbitrary sections will be shown below the built-in sections outlined above.

Als Twoinfo

It is a custom block that can change the position of the arranged "image" and "text" and can be displayed vertically on a smartphone.

Amit Singh

oceanwp

Generates an unlimited number of sidebars and place them on any page you wish. Go to Theme Panel > Sidebars to create your custom sidebars. 
This plugin requires the <a href="https://oceanwp.org/" rel="nofollow ugc">OceanWP</a> theme to be installed.

Ocean Custom Sidebar

This little free plugin allowed me to easily add any Elementor Library Item to any menu in any area. Show video's, products, forms anything you like in your menu's of sidebars.

Really, REALLY useful!

Do NOT underestimate it's power!

Generates an unlimited number of sidebars and place them on any page you wish. Go to Theme Panel > Sidebars to create your custom sidebars.

Als Twoinfo vs Ocean Custom Sidebar