Wholesaler Type Product Tables with Size Variations and Minimum Quantities and Discounts

I'm working with the Barn2 Plugins Product Table plugin, and I need some help with configuring the product table (example shown here: [login to view URL] - please login to the site to see the full page, as it does not display publically) to add custom columns as shown in the screenshot below.

There is a tutorial on the Barn2 plugin site on how to add custom columns programmatically, but I am not a developer and will need help with this: [login to view URL]

Specifically, I need to have different unit prices displayed (calculated) for the different ranges of units.

Please let me know if you've got the bandwidth for this or if you can refer someone else - I'm looking to get it done by the end of January.

Skills: PHP, WordPress, JavaScript, HTML, Software Architecture

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Project ID: #28984092