How do I configure the images for subcategories to be displayed on hover?
Please make sure to set the display of subcategories content in the main category settings:

And enable the subcategories by setting the desired Subcategories Position:

After these steps, you’ll be able to assign various content for the subcategories - the content is changed automatically by hovering the category name.
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I've assigned images for the subcategories, but these are not displayed on mobile devices. Is there something wrong?
In the current module implementation, the option to display content for menu items is available on desktop devices only. We have a task to consider adding such functionality in future updates, but unfortunately, there is no particular ETA yet. ...
How could I check if the optimized images are visible on the frontend?
Once the image optimization was done, please, open the frontend and with the help of developer tools click on the image. It should be displayed in webp format:
Is there a way to limit how many items are displayed in the Mega Menu?
There are two possible options to exclude some categories from the menu. First one - disabling a category from displaying in the top menu individually with the setting Included in Menu: Or, in order to hide the subcategories block, you can use ...
Will the quality of copy images be lower than the quality of the original ones?
The extension provides the functionality to select the required quality for the particular folder (100%, 90%, 80%):
How can I set the mobile menu to be displayed on devices with width Х?
At the moment there is no such a setting, but custom breakpoints for the mobile menu can be set via the files. Please, contact us for more detailed instructions and provide an example URL of your website.