Download classification by filetype

[nickolasrm]

I've loved this app, it's beautiful, efficient, and practical. However, there's a feature always missing in download managers, which is the capacity of sorting files into proper folders by their types. IDM (internet download manager) already does this for a long time. For example, let's say a .png, and a .mkv files are being downloaded, in this case, I find it would be better if they were respectively downloaded into ~/Downloads/Images and ~/Downloads/Videos.