Multi-Screen popup placement in a wrong desktop

[sirkubax]

As mentioned here:

http://askubuntu.com/questions/805695/select-monitor-for-indicator-information-choose-the-most-right-monitor

In my opinion, the notify-osd should either allow to configure the active desktop, or use most-right space of a whole desktop-space.
Now the popups appear in the middle of the workspace what is annoying!

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How would You set display notification to appear on the 'right/secondary' desktop

Currently no matter what I configure, it appears in the top-right corner of the left desktop :/

+---------------+---------------+
| [X]| |
| | |
| | |
| | |
| | |
+---------------+---------------+
Expected result:

+---------------+---------------+
| | [X]|
| | |
| | |
| | |
| | |
+---------------+---------------+
I did set:

$ gsettings list-recursively com.canonical.notify-osd
com.canonical.notify-osd gravity 1
com.canonical.notify-osd multihead-mode 'dont-focus-follow
Missing the setting for the 'display selection'

[sirkubax (sirkubax)]

For some reason spaces were removed form my 'ascii-image' :/
I'll replace them with '.'

+---------------+---------------+
|............[X]|...............|
|...............|...............|
|...............|...............|
|...............|...............|
|...............|...............|
+---------------+---------------+

Expected result:

+---------------+---------------+
|...............|............[X]|
|...............|...............|
|...............|...............|
|...............|...............|
|...............|...............|
+---------------+---------------+