Drawer
From your Shopify admin, go to Online Store -> Themes.
Find the theme that you want to edit, and then click Customize.
Choose Products from the dropdown window -> Choose Default product.
From the side menu, select Product information. Click + Add block and select "Drawer" block, or click the Search bar to enter a search term.
Setting
Description
Heading
Add text to display as a heading (Leave the field blank to hide the heading)
Select content
Select content from the dropdown menu:
Content from description.
Custom content.
Content
Add text to display as a custom content. (Leave the field blank to hide the custom content)
Content from page
Select content from page (page content).