Constructor Learn provides you with a modern uncluttered rich text editor that allows you to create sophisticated learning content items. With this editor, you can apply advanced formatting to your text, use complex formulas, easily embed images, links, visualization boards, videos and other elements that help better engage your learners.
To add a media block component:

See also:
Body text formatting
Click + on the left to open the advanced text formatting and insertion menu.

Press TAB on the keyboard to call the text indentation menu.