Using log settings
To set logging options and log viewer settings, click the Logs > Log Settings tab. See also Viewing and downloading log files.
Set logging options
Enable or disable Allow Script Error Log. See Script event log.
Choose the log viewer setting
Click Change, enter a new value, then click Save. Adjusting this setting may improve or impact performance.
Block Size: The maximum number of rows returned per server call. A larger block size increases the amount of data transmitted per call, while a smaller block size may require more server calls.