Draw line(in a specific layer and MovieClip), how do I?

An easy enough task you might think. I’ve seen the tuorials The Drawing API and such, but all of them seems to use the dodgy _root and such.

I’d like to be able to draw in a specific layer. I’ve tried using a mock MoviceClip (empty) that lies in it’s specific layer like such:

mock_mc.createEmptyMovieClip("line_mc", depth);

But it just does not work! Gaaaah, im getting crazy over this. Aren’t we supposed to be able to draw into any MovieClip?

Please, if anyone has any idea - or a reason as to why it won’t work at all, give me a hint.

Best regards,