How can i make SCLogin Dropdown from a menu item and login?

Christian,
Can you explain a bit more as to what you're trying? Do you want to create a menu item that says "Login" and when clicked... a modal will appear? A little unclear as to what you mean by drop-down, anti-modal and generally what your goal is. Anything else you can let me know would help us understand and help you try to implement something.

Thanks,
Alex