Create and design main product category in Opencart.

Hello, REQUIREMENT: Great knowledge of the English language. If you are unable to explain yourself well in English, DON'T BID! Please have a look at our website. http://nova.admin-x.com. Right now we have Categorieën, Software and Test showing on the left side as a vqmod addin for Opencart ([login to view URL]). If I talk about "main", I mean the text with the blue background. What we would need: If we go to admin, then catalog, categories we would like to be able to add these main categorys right there. Basically we would like to be able to directly add these menu's over there, instead of going to module - category menu pro. These main catogories need to show distinctive compared to the rest of the (normal) opencart categories. Please review the .jpg as how it should look like. - Be able to add new categories - Be able to edit - Be able to remove - The menu needs to be a collapsable menu. Once pressed on the main categories, the sub should collaps. The main category however is a categorie for products aswell. Once clicked on it should open that category, and show the collapsed version on the left. - Be able to easly assign sub categories. - Fixed position, sorting needed. Might be I miss some things, so you;d have to fix that aswell. I don't know everything on how to do things best, so your expertise would be needed here to, in order for this to work great. Your suggestions are required aswell. Thanks for reading.