In big screens the default pop up panel for Klipper is a little ridiculous. Before the Plasma 5.18 regressions one was able to adjust its size freely, but this configuration would be reseted with every session restart.
When Klipper's size will be customizable again, would be nice that it also were persistent, so if I want it to occupy the 70% of my screen's vertical space and show me 23 or 25 entries it won't be resetted next time I log in and show only 8 entries.