With Modals Widget you can add a popup in your Elementor page.
Content
Preview
You can choose to show the preview in editor mode.
Content Type
You can choose between:
an editor WYSIWYG where you can insert shortcodes and tokens;
a template.
Settings
Here you can find the articles about settings.
Animations
Here you can find the articles about animations.
Overlay
Here you can find the articles about overlay.
Style
Here you can find the articles about style.