Help changing the move window mouse binding in Lubuntu 21.04

Note: This isn't a duplicate of How do I edit lubuntu-rc.xml in Lubuntu 21.04 to change the mouse binding of specific actions from Alt to Super?, nor does that post answer this one. In that post, I'm asking for help editing a file that turned out to be empty, while in this one I'm asking for help achieving what I wanted to get from editing the empty file.

Problem:

I want to change the mouse bindings to move windows from using Alt to Super. To be clear, I'm referring to the Alt+[mouse-1] mouse binding.

What I've tried:

• Using the utilities, but I couldn't find anything on this
• Editing the lxqt-rc.xml and rc.xml files found in ~/.config/openbox, then rebooting

Additional information:

• Here's what I've changed from the *rc.xml files:

    <mousebind button="W-Right" action="Press">
      <action name="Focus"/>
      <action name="Raise"/>
      <action name="Unshade"/>
    </mousebind>
   
   <mousebind button="W-Right" action="Drag">
      <action name="Resize"/>
    </mousebind> 

• The rc.xml file is a copy I made of the file found in /etc/xdg/openbox/rc.xml
• There's a lubuntu-rc.xml file in ~/.config/openbox, but it's empty

Solution 1:

I tested this in Lubuntu 20.10 (VirtualBox)

1. open /home/<user>/.config/openbox/lxqt-rc.xml for edit, if there is no file there make a copy from etc/xdg/xdg-Lubuntu/openbox/lxqt-rc.xml or /etc/xdg/openbox/lxqt-rc.xml

2. Go to Frame > Action:Move and change the binding from A-Left in:

   ...
   <context name="Frame">
     <mousebind button="A-Left" action="Press">
       <action name="Focus"/>
       <action name="Raise"/>
     </mousebind>
     <mousebind button="A-Left" action="Click">
       <action name="Unshade"/>
     </mousebind>
     <mousebind button="A-Left" action="Drag">
       <action name="Move"/>
     </mousebind>
     ...
   

   To: W-Left

   ...
   <context name="Frame">
     <mousebind button="A-Left" action="Press">
       <action name="Focus"/>
       <action name="Raise"/>
     </mousebind>
     <mousebind button="A-Left" action="Click">
       <action name="Unshade"/>
     </mousebind>
     <mousebind button="W-Left" action="Drag">
       <action name="Move"/>
     </mousebind>
     ...
   

3. Restart DM

     openbox --reconfigure
   

It works only with Right Super, Left Super is bind somewhere and trigger popup-menu (I didn't look at it yet).

Reference: superuser.com/a/677838/