Deactivate openbox desktop context menu on 2nd screen

Question

I'm using Debian Stretch LXDE (OpenBox) in a dual monitor setup. I activated the openbox context menu of my second screen by setting

Desktop (right click) -> Desktop Preferences -> Advanced (Tab) -> Show menus provided by window managers when desktop is clicked (Checkbox)

My 1st screen context menu appears as it defaults.

So how do I activate the OpenBox context menu on the 2nd screen?

I already tried to figure out some settings in /etc/xdg/openbox/... but with no clear results.

Edit

To clarify my problem: Every screen has its own settings, available by Desktop (right click) -> Desktop Preferences per default. As soon as I activated the window manager context menu the Desktop Preferences disappears and I can't undo my settings.

Edit (2017-12-05)

Left screen desktop context menu

Right screen desktop context menu

The setting caused the right screen desktop context menu, originally made on the right screen desktop

Answer 1

So you need to re-enable the PCmanFM Desktop, this is the software which gives you the Windows like menu with create new, etc.

I haven't found the exact option which allows you to do this, but from the PCmanFM wiki, the man page, and the Arch wiki I gathered, that there should be an option in the ~/.config/pcmanfm/default/desktop-items-$XYZ.conf where $XYZ is a number for your screen starting from zero.

There you should find an option to switch the menu from PCmanFM back on. But I don't know which the name of the option and the possible values. But by comparing the two files you will have you should see a relevant difference.

So running

diff ~/.config/pcmanfm/default/desktop-items-*.conf

Should give you a good clue.

In addition there is ~/.config/pcmanfm/default/pcmanfm.conf for genereal options.