How to display a button in the WordPress editor to work with the plugin?

Question

WYSIWYG

Hello.
I'm writing a plugin for WP to manage forms. It is necessary to make it so that in one or two clicks the user can add the form to the page directly from the editor, without copying the shortcodes.
I've seen such a thing in various plugins (eg Caldera Forms), but I can't google the documentation properly. Tell me how to display the block of my plugin in the editor, or in general, what is the correct name for it, what to catch on in the search for information?

Answer 1

https://wordpress.org/gutenberg/handbook/designers...