It is almost impossible to make a copy of the original site as we have to deal with multiple gigabytes of content. I already have provided you with both a screenshot, sample product, and demo site which works 100% the same way. I don’t understand why you think this would only work with my main site (BTW you already have the admin login details). Plus, this tweak seems to be a simple function and hook workaround. It shouldn’t be so complex and need days of code writing.