The preferences button is a user setting, which means that each user can decide whether they want the preferences button to display on their map. The preferences button enables the display of data objects and data stores on the process map.
Quick Steps to Enable Preferences User Setting:
Select your profile at the top of the page
Select 'Profile'. The profile page will open up
Select Configuration
Set the 'Display Preferences button on maps' toggle on to display the preferences button on the map. Toggle off to hide it.