1920x1080_120.sh

#!/bin/sh
 
xrandr --newmode 1920x1080_120 264.5 1920 1944 1952 2008 1080 1083 1090 1098 +hsync +vsync
xrandr --addmode HDMI-0 "1920x1080_120"

2560x1440_60.sh

#!/bin/sh
 
xrandr --newmode 2560x1440_60 286.4 2560 2736 2856 3120 1440 1448 1512 1530 +hsync -vsync
xrandr --addmode HDMI-0 "2560x1440_60"

Windows Mode Defs