There is no twain import facility in C2, if that's what you mean, but nearly all art packages support such a thing. This is a 2d games creation system after all - it can't really be expected to have the functionality of an fully-fledged art package.
If you really wanted such a thing, the C2 SDK might be a possibility, but you'd need to code it yourself. There are APIs out there (Google for javascript twain api) that can be accessed via javascript, but again, you would need to program such functionality yourself.