On demand scrolling
I was referred here by Nate Graham from https://bugs.kde.org/show_bug.cgi?id=409847 (which has supporting information). I did not find any way to post a question here without filing an issue. I looked!
I would like to configure my touchpad to work normally as it does now except with two finger scrolling disabled unless I am pressing a modifier key such as Ctrl.
I have described what I need and why in detail here: https://forum.kde.org/viewtopic.php?f=216&t=155524 AFAIK, this functionality does not currently exist.
If there is any way that can be accomplished as part of this project, etc., I am quite willing to assist with testing or help in any way other than coding. I am currently using kubuntu 18.04, but I need this feature enough to be willing to switch if necessary. AFAIK, my current setup does not use Wayland. (I do use one application, AutoKey, which I know doesn't work with Wayland.)
I made an initial attempt to build libinput, but got stuck in meson on dependencies. I can work on it further if it will help.