What are the steps to open a UE4 project in VS17 if UE4 is build from source?

Firstly I open UE4.sln then I debug UE4 and select start new instance, this will open up the editor. Once the Engine is open I select my project and then click on file -> open visual studio. This will open up another instance of Visual Studio, now I have 2 Visual studio instances. This way I have to open VS twice thus the engine source loads up twice. In total this takes up around 30 minutes

Is there any other way to open UE4 and project everything at once?