I've already got it :-]
VS2013 has the ability to resolve namespaces but ReSharper has a better implementation (just Alt+Enter),
Has VS2015 changed from the way VS2013 handles it ?

And, of course, there's a ton of other useful functions in ReSharper that VS hasn't got around to.....

>If you're getting Resharper just to handle usings, don't spend the money. VS2015 added that functionality.
>
>>Hmm, 'using's are namespaces, references are DLLs.
>>If you're talking about adding 'using's then get ReSharper - it's pretty smart at working out what's needed.
>>If you are talking about references it would make no sense to add them ALL - you would end up with a huge number of unused dlls when deployed.