Is there a simple way to save the state of the Legend such as saving an MXD in Desktop? I have developed an app and can load layers such as shapefiles, tiffs, MPKs, and run GP tools that produce products that are also loaded into the TOC. I want to preserve the state when the app is closed, so that when the app is opened again, I want the user to be able to load a file such as an MXD so that all the layers can be loaded automatically based on this MXD-like file.