Add option for deleting images.

Hello webmaster,
Why can't you add option for deleting images. We cannot be 100% perfect while submitting images. Sometime image appears for thrice without my knowledge. Deleting image option will overcome this problem. We dont have options for changing primary image too. I think this two option is must needed. I had seen many members made complaints in forum. So please eradicate the problem as soon as possible or find the other ways to overcome this problem.