Mega Menu option not showing after save the menus

Hello,
Your this article is not working for me – https://kriesi.at/documentation/enfold/mega-menu/
1. First time when I am adding the custom link in my menu, It is showing the “Use as Mega Menu” checkbox option – http://prntscr.com/l72rcw
when I checked the mega menu option – http://prntscr.com/l72vmx, its nothing showing on sub menus as you shown like this – http://prntscr.com/l72wab (https://kriesi.at/documentation/enfold/mega-menu/)

But after when I am Save the menu, the option has gone – http://prntscr.com/l72x21 .

2. Also I wants to put icons like this – http://prntscr.com/l72udb

Please fix the issue ASAP of mega menu and give suggestions for adding the icons in mega menu.

Thanks

• This topic was modified 5 years, 7 months ago by almondmike_a. Reason: Some screenshots and more information pending