Hello
Please fix and add this item in the whmcs module
When I want to sell traffic to my customers, for example, 1 terabyte of free download and upload, but only total can be created in the whmcs module, and I have to manually edit this item in the virtualization panel and the second item in the additional traffic section of the whmcs system. For example, I bought the server 15 days ago and now I want to buy traffic again. If every 1000 gigs of traffic is 2 dollars, the system will calculate 1 dollar until the renewal time, and the service provider will suffer a lot in this way, and the latter case is not possible. to subscribe as one-time traffic, buy 1 TB of traffic without time and after the traffic is over, it will be removed from the panel, for example, like a charge card, and the last thing, one day, work on the design of the whmcs user module in terms of graphics, and more features to Add module