Re: Commission off of sales
Kinda sounds like your looking at a Final Value Fee, similar to ebay. It would be kind of hard doing that with the current version of CP, because a seller can remove their listing at anytime, without notifying the Admin.
Inside the admin panel, you can designate what type of fee you want to charge per listing or category. It can be a flat monetary fee or a percentage of the ad.
On the second question, do you mean Buyer instead of Seller?
Hope that was helpful.
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