Navigate to System Settings > Window Management > KWin Scripts
and:
- Either click on the
Import KWin script...
button and browse for the downloaded script, - or click on the
Get New Scripts...
button and search for the script online through theGet Hot New Stuff
dialog.
$ plasmapkg2 -i /path/to/movewindowtocenter.kwinscript
If you installed the script through the Get Hot New Stuff
dialog, you should uninstall it through the same dialog. Otherwise the following command will do:
$ plasmapkg2 -t KWin/Script -r movewindowtocenter