Make Mega Menu drop-down full-with?

First, love High-End. I’ve tried 100+ themes, purchased probably 20, and High-End has always given me exactly what I want 🙂 So thank you.

Now, onto the question! Currently my MEGA MENU fits about 90% width of my website, is it possible to make it full-width instead?
Is this option built-in somewhere, and I just can’t find it?
Or is this not possible, unless coded properly?
And if it requires code, is it a simple code you can provide so I can play around?

If it helps, I attached a screenshot showing how it looks now.

Thanks in advance, looking forward to the reply.