When using this option, another window will open up, which shows the details of this event in a more readable view. This could look like this:
Syslog Message Details
Clear Read (Checked)
By activating this, you can clear the checkboxes of the items your marked as read.
Clear Complete View
This option will clear the screen and remove all received data from the view.
Having selected one or mutliple entries, you can copy them using this function.
Instead of copying you can extract the selected data into a text file.
Or you directly export all the data that is currently in the list.