My reports represent the user space for each type of user, and it’s also the place where you can see your own reports divided into different categories.
In Shared Reports section you can find all the reports shared by all types of users so that way the reports are available to everybody:
If you want to share a report, you have to go to My Reports folder and select the desired report. After you’ve opened the report you will have to select the “Share” button from the top right menu :
To unshare a button all you need to do is to follow the same steps like above , except now you have to select the “Unshare” button.