Tabber Within A Tabber

I am looking to have tabber implemented within another tabber. 

For Example : If I have 6 Tabs namely A,B,C,D,E,F and G then I will need 2 tabs under each of these tabs. Let's say 2 tabs A1 and A2 under tab A and similarly 2 tabs G1 and G2 under G tab. 

I am able to add the tabbers (A1 and A2) in tab A by hiding them in all other tabs but when I include other tabs (Under tab B to G) then everything gets messed up. 

Is there any way to solve this?