OpenCart Webkul plugin modification needed

THANK YOU FOR LOOKING THIS IS AN URGENT PROJECT AND WE NEED YOUR FULL ATTENTION - ONLY EXPERTS NEED APPLY! So, I personally owned this project. I am on the process of building Multivendor ecommerce project using Opencart 3.x + We have bought and installed Webkul Multivendor plugin + We have bought and installed Webkul Multivendor Auction plugin + We have bought and installed Webkul Multivendor Pre-order plugin + We have also bought Webkul Multivendor Mobile App (for Android & iOS) So, by default - when adding products, Sellers goes through their dashboard to add products (Opencart default annoying way) by putting all details, move to different tabs to add other details like Category, Price, Meta Description, etc and another tab to add images one by one then saved – this can be so tiring. After done adding products, If Sellers want to set products up for Auction or Pre-order, they will open the Auction module and select the item you want to put for Auction/Bid and if you want to set products for Pre-order, you again have to open the Pre-order module and select the item – again, this is also tiring. WHAT COULD BE THE SOLUTION AND EASY WAY OUT? I am just thinking if it is possible to have one-page upload process (very good/smooth UI) to ease product upload so we don't have to move from one tab to another when we need to upload products. Sellers through their dashboard when they need to upload products, they only need to select category, subcategory, product title & description, quantity, options and all details of that product. Also, they will be able to select the condition of the item (New, Used, Parts, Refurbished, etc), and most importantly is the Selling Format they wish to sale the item (Buy Now + Bid, Buy Now Only, Bid Only, Buy Now + Offer, Offer Only, Buy Bow + Offer + Bid or Pre-order, etc). The selling format of the item is shown front-end (home page/product listing) to help buyers know if the item is available for Bid or Buy Now or Offer is accepted. Also, I want sellers to be able to add all photos at once – instead of the OpenCart default way. We want this EXACTLY photo image uploader style: [login to view URL] See example of One Page Upload + Auction + Offer or Buy Now options – I did this video to help your understanding: See backend: [login to view URL] See frontend: [login to view URL] Please contact me if you feel you can do this - I am looking forward to a longterm business/working relationship. With such a complex project I am trying to build please advise the best approach to this. Thank you!