Loek - 2013-05-09

When I'm uploading printscreens using Greenshot, the program automatically assigns a filename to the picture, usually based on the time stamp. This is fine. However, when I upload an existing image file (with a carefully chosen filename), Greenshot overwrites this filename with the timestamp again. Would it be possible to have the option to prevent Greenshot from changing the filename when an already existing image file is uploaded?