I need some help with a mega menu and product intergration

Hi Everybody i have a dropshipping platform, [login to view URL] There is the platform and some info about the intergration and category mapping The mega menu is already on the site, but i would like it to have these categories: Header Catagory - Disposable Mega menu catagory- brands (List of brands) flavor's (List of flavor) special offers 3 for £15 5 for £20 subscription disposable guide (How to use disposable vape ect) Header catagory -E-liquid Mega menu cat -Nicotine Shot Sub cat- Brands Best selling Flavor Mega menu cat -Nicotine salts Sub cat- Brands Best selling Flavor Mega menu cat- Freebase Brands Best selling Flavor Mega menu cat- E-liquid quide Header cat- Vape Kits Mega menu cat- starter kits Mege menu cat- brands batteries coils tanks pods accecories Mega menu cat -Vaping guide Sub catagory( various guide about vape) Inventory source is already connected but i think because i didn't structure the mapping its needs to be disconnected then the mapping structured correctly then integrating once again. If that is the case and it needs to be integrated again it could take a day or so of waiting for the inventory source to sync so you should be aware that it could take a few days of waiting to complete the job. This is all for now. But Later i might need more help but for now i just want to make the menu function properly. basic configuration has been done already but it could require a reset. All categories can exist on IS if they are set up from the initial integration. Some categories might require additional tagging which i will explain in the next point The 3 for 15 and so will will be categories where I will group certain products for a sale price. For subscriptions i am not a wear of any plugin for that so if there is one available i will need help with it. All of the categories apart from subscriptions and special offers and flavor can be intergraded for IS Subsciptions withh be a plugin as you say. Special offers will be a few groupings of products which will be quite simple i belive. The conplicated one will be flavour as all will need to be tagged individually i belive. So if you could please look into that, it could be quite time consuming but it should be reflected int he price of your service. Some post pages are ready some but not yet. I can write and create all the pages myself and i belive they can be added quite easily to the mega menu at anytime. I was just trying to show u that as an example that each mega menu should have an element of eccomerce and information pages Look forward to hearing from you