Debian 11 XFCE 4: how to tile windows?

**Context:** In 2015, yoshisherry said , on UNIX Stack Exchange: > In windows 7 using Windows Key + Left or Right arrow makes a window take up half the screen. > > XFce 4 has the ability to tile either two windows side by side or 4 windows one in each of four corners (bottom left, bottom right, top left, top right). In 2012, Michael Cheng said , on UNIX Stack Exchange: > In XFCE 4.10, you can enable an option that allows windows to tile automatically when dragged to the edges. The default is to tile to half the screen (half-top, half-bottom, half-left, or half-right). **Question:** In 2023, using xfcwm 4.16.1-1, **I ask:** - how is that possible? I never was able to do the most basic "left/right" tiling on XFCE on Debian 11.