Editing The Responsive Mega Menu Live Composer Extension

Instructions for "Responsive Mega Menu" Live Composer extension

1
Go to WP Admin > Appearance > Headers/Footers and select the header you are using. In the case you are using the demo content, open in Live Composer the "Header - default design".
2
Mouse over the menu module until the module settings panel is displayed. Click on the cog icon.
3
Click on the "Style" tab / Submenu block and upload a background image. Use the background position options according to your needs. 

Important

Please note that In Menu Pro plugin, you cannot have adifferent drop down background image in the same menu. For instance, if you have three dropdowns, all of them will have the same background image. If need to have the different drop down background images, you need to split your menu in three (keeping in mind the above example) on WP Admin > Appearance > Menus and display the menus using three "Menu Pro" modules. Use the module "Columns" feature in order to match the same header space.

Instructions for "Mega Main Menu> plugin