aaPanel_Kern you cannot just include the sales system in your updates. since every country have different payment gateway, etc. for example if you include sales using paypal, but i want use my local payment. that will be lot of work to be done. let the sales system created by admin, we know who install aapanel would be know about sales and can create by their own (not all people, but almost all of them). just give us API to connect to that multiuser feature such as disk, expiration date, status, etc. so leave it to us the rest. or even i can help you create the sales later, but just for region/country. i mean, like plugins created by me. if you ask why i want to do this? cause im bored and got nothing to do XD