One of the KDE Plasma features I use almost in daily basis is the MouseMark.
Go to your settings, in Desktop Effects, Enable the MouseMark (you can change the settings of it in the button in front of it). Then press Meta+Shift and move your mouse to doodle, or press and release Meta+Shift+Ctrl to define beginning and end of an arrow (it will draw the rest.
Interestingly enough, it have been in Plasma for the past 16 years:
https://github.com/KDE/kde-workspace/tree/master/kwin/effects/mousemark
@Pantherina I don’t know what you mean by Autoremove, but here are some tips:
Undo the last line by Meta+Shift+F12
Clean everything by Meta+Shift+F11
In the latest version (at least the one that is in KDE’s git repo, users can change all those keybindings. Checkout
mousemark.kcfgandmousemark\_config.uifiles in this link:https://invent.kde.org/plasma/kwin/-/commit/46807b1a72f1d760b52b92a574face4a7a509a39
I don’t yet have #Plasma6, so I’m not sure if it is already shipped there or not. But the code is done and it is just the matter of time :)