How to set engine version in VS2015 ?

Hello,
i recently installed 4.11 to take a look at the upcoming patch. Now Visual Studio always links compiled executables and DLLs to 4.11 - how can i set the defaults in VS2015 back to compile with 4.10 in my project ?

go to your projects folder, right click the .uproject file and click Switch Unreal Engine version. In the drop down you will find the different version numbers you have installed.