Cent features are almost complete..

[Admini]

I think it is a good idea that the Cent's download manager has the capability to limit the download process up to, let say, only 3 (three) active download process at a time. This is aimed to keep the stability of download process and to get the highest download speed.

Nice suggestion.But we recommend using an external downloader to increase download speed.
(BitComet, IDM, FDM, etc)