For VB, 
   it is found at Tools – Options – Text Editor – Basic – VB Specific – Enter outlining mode when files open. 

For C#, 
   it is found at Tools – Options – Text Editor – C# – Advanced – Enter outlining mode when files open. 

For C/C++, 
   it is found at Tools – Options – Text Editor – C/C++ – Formatting – Enter outlining mode when files open. 

For J#, 
   it is found at Tools – Options – Text Editor – J# – Advanced – Enter outlining mode when files open. 

Happy Visual Studio’ing!