Altdrag is efficient. But I want to use mouse left button with other key like Ctrl to resize
Because it's pretty difficult to resize by altdrag with mouse right on a laptop trackpad.
It's very easy to do this in some wms. Is it possible with KDE?


It can be changed in the system settings, but only supports Alt and Meta/Windows keys. The mouse buttons can be freely assigned to different actions.

KDE > System Settings > Window Management > Window Behavior > [Tab] Windows Actions > [Section] Inner Window, Titlebar & Frame > [Droplist] Modifier Key

See also this bug report, where the default modifier key will be changed to Meta in the next kwin release: https://bugs.kde.org/show_bug.cgi?id=399375

  • Thx. But tha't not enough. If possible, there should be two modifier keys for me to do the stuff.
    – chi chow
    Jun 19 '20 at 14:18

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