How can i add subforum in subforum ?
 

hello there
i want to do like . I have a main forum i add in it a SUB FORUM name as "A" than in sub forum "A" i want to add sub forum "B" which do not appear on main forum hope .i tried to add subforum B in sub forum A but it subforum B is also appearing on main just below the subforum A and i dont want it to be appear on main hope you get my point
thanks
waiting for reply
bye

i think what you mean is

Forum
>Subforum
>>>Subforum

yet on the mainpage all you want is

Forum
>Sub Forum

if so set the subforum depth to 1 in vbulletin options

can i do it for only one particular subforum ? or it will be applied to all forums section of my forum ?

It will be applied to the entire forum listing.