A more elegant way would be to create the following file in /usr/local/share/X11/xorg.conf.d/01-disable-blanking.conf:
Section "ServerFlags"
Option "BlankTime" "0"
Option "StandbyTime" "0"
Option "SuspendTime" "0"
Option "OffTime" "0"
EndSection
Don't forget to add it to /opt/.filetool.lst