Hello,

1. Mega menu:
First of all, It is necessary to create an HTML block separately for each menu item. Dashboard > HTML blocks > Add new. HTML block is a WordPress custom post type with WP Bakery page builder option allowing create any template.

Megamenu block is created by means of the Extra Menu list element. At the same time, Megamenu block can contain any other static content element such as Product Grid, Images, Texts blocks.

As soon as Megamenu blocks are ready, they may be added to menu items in Appearance > Menu > Select menu > enter menu item > HTML Block dropdown in the Custom fields [for theme] which appear as soon as the menu item has been saved.

You need to set “Full-width” or “Set size” in the Design filed in order to get the option of HTML blocks drop-down.

2. Change the wording

You can rewrite all theme and plugin texts via PO file in WordPress. Here is a video tutorial that should help you rewrite your website texts with a Loco Translate plugin https://www.youtube.com/watch?v=D3NsDdMzsls&list=PLMw6W4rAaOgKKv0oexGHzpWBg1imvrval&index=3

3. Shopping cart in the sidebar

Navigate to the Theme Settings > Shop > Action after add to cart > Display Widget

Best Regards