It would be quite useful to have the ability to securely delete any file chosen (say from a file selection dialog) or any directory and all of its contents (recurively) using a folder select dialog.
As CCleaner allows you to specify what method of securely deleting to use it would make sense to use this to allow any file/folder to be deleted using this mechanism.
I love the product - its the best product of this type I have ever used and I think adding of this feature would make it even better.
Cheers
Steve