Using video scopes in color grading is a personal passion of mine and I am going to tell you why you want to use them too. Before we dive in, I am working in Premiere Pro CC, so I will be referring to the Lumetri scopes. If you use another program, you might have slightly different terminology, however I ensure you that you’ll be able to translate the information found here and follow along in your respective software.
It is likely the most easy way to create a sequence by either dragging a clip to a Timeline panel or by right clicking a clip choosing "New Sequence from Clip". This is super handy and easy. However, moving forward with the post production work you find yourself adjusting your clips or other settings to match the sequence, don't you?