One of my favorite linux programs is Conky and many distributions include it by default but aside from opening the terminal, once you have opened it you’re stuck with it. There’s not usually a simple way to toggle Conky on and off in most distributions by default but adding the functionality is easy.
Add to File
#!/bin/sh # click to start, click to stop if pidof conky | grep [0-9] > /dev/null then exec killall conky else conky fi
Create Launcher and direct it to file location for Command.