Hi @helen_white
You can refer Magento 2 Mega Menu Pro Extension developed by LandOfCoder.
Using this extension, you can easily get drilldown menu on mobile.
Besides, there are a lot of helpful features as listed below:
- Fastest Load Time, Cache Supported
- Drag & Drop Intuitive Interface
- User-friendly Interface & Enhanced UX / UI
- Fast Ajax Load & Live Preview
- Skin Builder: Custom Design With Ease
- 16 Premade Menus & Create Unlimited Menu Possibilities
- One click to Import or Export Demo
- 786 icons included by Font Awesome
- Instant Import Store Categories
- Horizontal and Vertical Structures
- Built-in LESS Stylesheets
- Show horizontal & vertical menu at the same time
- Fully Compatible with Porto Theme & Ultimo Theme
- Mobile Menu: Off Canvas Menu & Accordion Menu, Drilldown Menu
- Widget Support or add code to file XML on any position
- Multiple Animations Effects Supported
- Place mega menu on any position
- Compatible with Magento EE
When purchasing this extension, you can have it freely installed on your website by our developer. For further information, please contact LandOfCoder via:
Website: https://landofcoder.com
Email: info@landofcoder.com
Facebook: https://www.facebook.com/LandOfCoder/
Hope this helps!
