The One Line Display is a record summary that appears automatically at the top of each data entry window to identify the record you are viewing at the moment.
The One Line Display also appears in the following places:
oList Manager
oActivities tab of the Objects & Activities window
oAuthority Search window
oThe Related Activities field in the Reporting and Query tools
oManagement Activities window in the Object file.
The One Line Display is configurable in each Activity file.