DayZ Key Manager (In Coding)

I want to know what you guys (Mainly aimed at big key sellers) Think of my program im coding and if you would use it

First of all, I know it has an advertisement, but its just a new forum Ive co founded, and its no competition and never will be (For MPGH at least).
Please put what you think should be added and your opinion as to what would make it better. GUI is not important at the moment, I only want feature requests. Depending on how many people want it/How advanced it gets will change weather I will sell it or release it.

Current Features:
Double click key in the keylist to switch it into the selling box
Change key
Download Darky/Run Darky (Download will download directly into install folder)
Save/Export sold keys to text file (Named "Default 00:00 PM 10/02/2013.txt")
Import keys (Automatically saves keylist if keylist is changed)

Moderators/Admins Ignore the advert please, if I release it on MPGH I will replace it with a MPGH Logo. I do not want any trouble, I just want feedback.

*noob attemps to use key in the screen shot*

Originally Posted by chickeninabiskit

*noob attemps to use key in the screen shot*

Its from my in use keylist, go for it. At least 5 other people have it though.

Lucky I didnt use a good key, I forgot that I had a key in there while posting the images