Dropdown inside a dropdown?

[NoPretender]

I don't know if this should go into unpaid mods, but does anyone know how, or if it's possible, to add a dropdown menu inside another.

Example: You have the "Quick Links" menu in the navbar and say you want to add another menu inside that, that says "Edit Profile", when that's clicked a new menu expands and has listed like, "Edit Avatar", "Edit Signature", "Change Password" or something like that.

Is this possible? I tried just creating a new menu the same way I would if I was adding it to the navbar, put the link inside an existing menu, but when I clicked it, the current menu would disappear, and the new menu would popup in the top right corner. Thanks in advance for your help.