Is it possible to display additional fields in the editor for the user in Bitrix?

Question

1C-Bitrix

What I mean:

The articles also do not show an example of work.
dev.1c-bitrix.ru/learning/course/index.php?COURSE_...
Based on this video, it is assumed that he custom fields are not intended for this
https://www.youtube.com/watch?v=OsmfPWc24X0
modx can be done like this, and it's very convenient:

Answer 1

Everyone is used to something (especially if it was their first experience). And it is not convenient to consider the algorithm of actions for implementing a specific task in another system. Bitrix has its own algorithms and logic of work. And there is nowhere to hide from it.
On the screenshots, as far as I understand, you just need to create properties in the infoblock. Properties are different and they can be used in different ways.

Answer 2

List of fields
if you need something of your own - please create properties