If 'copy-file-mode' is enabled, then the selected file will be copied to a temporary directory and then this copy will be opened by EasyTrac64.
The 'copy-file-mode' can be very useful if the file to be opened is currently open by another process and this process cannot handle EasyTrac64 getting read access to this file.
Note: the 'copy-file-mode' is only available for the functions 'Open Log-File' and 'Open last used File'