Hi, I am glad you like my app.
This is not right topic to post suggestions - either create a topic in request section or just mail me.
As for your idea - my program will never support user-made (custom) plugins for file hosts.
Sites have many variables which can't be process just by some script. It has to be build-in.
If you don't find your favorite file host in my program, mail me and I will do my best.