The predefined reports, styles, chart styles, and color schemes you will find in the Analytics explorers cannot be edited, renamed, or deleted. However, you can copy any of these predefined items and use the copy as a starting point when you want to create a customized version. You can also use the same method to copy custom items that were created in any of the Analytics explorers.
To copy an item:
Custom files cannot be stored in the Report explorer’s and Image explorer’s standard folders.