Custom Branding.with Presentation View

Is there a way in the tabs section under custom branding to be able to have a spot to upload the pictures we want for Mobile and Presentation mode when you are in the plans that support this. I know that they both have different size files. If we are able to upload things in one spot for everything else as it is another two other steps to make this happen. If it was all in one spot it would be easier and better time management.