Select the checkbox adjacent to the Expression Name.
Click 
View
in the Expressions tool bar.
This option allows you to view the Expressions created in all public folders, shared folders to which you are mapped and private folders for which you are the owner. Additionally, the Read only role should be mapped to your user group.
To view the existing Expression details the Expression Summary screen:
Select the checkbox adjacent to the Expression Name.
Click View
in the Expressions tool bar.
The View Expression screen is displayed with the Expression details.