How to add Mega Menu Item into Vertical Menu in TechOne theme?

Hi mate,

Here I make a video to guide you how to create a new mega menu on Vertical menu:
https://drive.google.com/file/d/1o-V7oe74kGzEbEPPh5rUWP06-rY3d_NP/view?usp=sharing

Hope that it will be useful for you
If you are satisfied with our support, would you please spend a little time to give us a good review + 5 stars on website http://themeforest.net/downloads. It's really very worth with me.
Regards,
Yame