In the PREVIEW mode, you can check all changes applied to the modules added to your item. For this, click 
in the upper-right corner of the modes panel.
On the MODULE HIGHLIGHTING sidebar, you can find the module modification statuses and other metadata. The component highlights are displayed on the layout.
Contact your administrator to configure the name and color of the modification status and set the module metadata displayed in the MODULE HIGHLIGHTING sidebar.
To view the changes in a specific module, scroll through the MODULE HIGHLIGHTING sidebar and select the required module. It automatically fits into the central area of the layout.
e-Detailers
When navigating between e-Detailer slides, activate the Highlight option for each slide.