truetrue016,20,24,28,32,48,64kde-Home.desktop,kde-konsole.desktop,kde-KControl.desktop,kde-Help.desktop,kde-kwrite.desktopButtons that can be removed dynamically if they become unpopulartruefalse0306010070Number of services to remember500Name of known servicesPosition where services are inserted when they regain popularityHistory Data used to determine the popularity of a service