Is there a way to configure different KDE config modes for different profiles? when i am watching a movie i don't want to see a screen saver or lock screen, but when working at my PC i want to start a screen saver after 15 minutes. Also display dimming and similar settings are different. I don't want to create several users.
Activities
The KDE is having the Activities: http://userbase.kde.org/Plasma -> http://userbase.kde.org/Plasma#Activities
You could use the Activities as the profiles.
Example
Make the Activities for the home, work, movie watching...
Set the activity power management settings...