History scrollback in konsole is good thing, but often I need to clear it (like in just created console - nothing except console prompt). One of the reasons for it is to run some command and be sure that I see only it's output. Escpecially when previously I ran many commands with many lines of output - more than can hold screen. In this case it is very hard to quickly find out where next to last output ends and where last output starts. As clearing of history can be needed often I don't like to ...
