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Do you mean the suspend/resume? I was not sure about that so I did a research and I found a thread from 2015 with a link to the kde bugs report.I also had no KDE power functions I'm telling you, but that was because KDE dropped upower support
https://yeupou.wordpress.com/2015/11/25/getting-back-suspendresume-with-kde-5s-powerdevil-and-no-systemd-by-installing-an-obsolete-version-of-upower/
https://bugs.kde.org/show_bug.cgi?id=355892# c8