I've went through this interesting thread: Lubuntu 19.10 & 20.04: How to tile windows? The window tiling section is missing in lxqt-rc.xml Lubuntu 19.10 & 20.04: How to tile windows? The window tiling section is missing in lxqt-rc.xml.
It works perfectly for Super+Right / Super+Up / Super+Down, but is not functionnal for Super+Left. Note that the command openbox --reconfigure does not change the situation.
Here is the extract of lxqt-rc.xml. Does anybody have an idea why Super+Left is not functionnal ?
<keybind key="W-Left">
<action name="UnmaximizeFull"/>
<action name="MaximizeVert"/>
<action name="MoveResizeTo">
<width>50%</width>
</action>
<action name="MoveToEdge"><direction>west</direction></action>
</keybind>
<keybind key="W-Right">
<action name="UnmaximizeFull"/>
<action name="MaximizeVert"/>
<action name="MoveResizeTo">
<width>50%</width>
</action>
<action name="MoveToEdge"><direction>east</direction></action>
</keybind>
<keybind key="W-Down">
<action name="Unmaximize"/>
</keybind>
<keybind key="W-Up">
<action name="Maximize"/>
</keybind>