Need a vertical mega menu like http://www.lynda.com/

I have a WPLMS site at http://edudelight.in/

I need to have a vertical mega menu under the "All Courses" menu similar to http://www.lynda.com/ > "Library" menu. At first I tried with Max Megamenu plugin, but there a mega menu can only be created at the top level. As I said, I need the mega menu at the 2nd level. Now I am using this plugin http://ift.tt/1ri3JKP, but it works on mouse click and not on mouse hover.

I don't want to purchase UberMenu for now. Please suggest the solution. Should I continue using this Tab plugin, where creating the whole mega menu could be quite a tedious job? In that case how to code for changing the OnClick to mouse hover.

Or, is there any better solution?

via Chebli Mohamed