As a site administrator or content creator, the selection panel on the page editor can contain a lot of duplicate wording. This makes it harder for me to identify where the fragment I'm interested in is within the context of this table of contents. I would like the ability to click the title to rename it in the selection panel or to have a "Metadata Panel" maybe next to the "Styles" tab where I could rename the title of the fragment.
As an alternative if the panel doesn't work out, there is an ellipsis menu in the fragment topper that could be used to place a "Rename" menu item that could open a modal popup to enable the renaming of the fragment.
An example of where this UI pattern is used is within the layers palate in Photoshop.
Additionally, if the word "Module" was changed to "Column" I would be better able to navigate through the selection tree because module is often a confusing concept.