Update Excel Macro Buttons

I have an excel macro that I need to work on. This is Urgent, and needs to be completed ASAP. First part of task involves making some change to the sheet called Specials. The button called Save Stock List for Web currently creates a sheet called Union_Sheet1 which is formatted for our PHPExcel importer to understand. I need to add corresponding SKUS numbers for our products to COLUMN E on the Union_Sheet1 output. The skus is what our invoicing program uses to determine the product. All products skus are in the SKU sheet. Product names are all matching in the SKU sheet and the StockList sheet. That's how you would make the connection in excel, by name. So if a product is chosen, the corresponding sku for the product needs to be on our upload sheet. Our import tool is currently coded to see the SKUS in the following column for the Specials sheet. E - SKU Second part of task, is on sheet StockList. That sheet has button which looks at all the ADD|DEL columns. Click on a blank cell LEFT of a product or ABOVE a bolded title section in the Add|DEL column. From the drop down, select ADD on any of the products then click on Stock List Generator button. Currently, the sheet it creates makes a 3 column export. I need to add SKUS for the products to this export. Our import tool is currently coded to see the skus in the following column for the Stock List sheet. D - SKU for product column 1 E - SKU for product column 2 F - SKU for product column 3 Third and final task is sort of two parts. Part A, you will modify the Stock List for Web button in the Specials sheet. Instead of it just creating a sheet called "Union_Sheet1" , I need it to create a NEW excel sheet called "Updated Weekly Stock List" with the 4 sheets called [ Union_Sheet1 | Stock List (the output) | Dry| WYSIWYG] Part B, is on the export of WYSIWYG, it needs to add in Column G on WYSIWYG a generic/default SKU number on the output so our invoice program can understand the products. Final Task is to take the button on Sheet 1 called create "Stock list for Web" and change it. I am working with Excel 2011 on Mac, but this file will be run on Windows 8-10 pcs with Windows Excel 2010. Just letting you know cause I know the libraries sometimes mess things up for macros and stuff. I will test the file on the pc it will be run on final delivery. This is a rather urgent project so please ONLY apply if you are available to start working immediately, and can complete ASAP. Thank you for your time.