First, adjust the pixel space:
The pixel workspace is a rendering area in which all media will be composited. You will then be able to assign a portion of this pixel workspace to each output.
You will therefore declare a total pixel workspace of: horizontal resolution proj 1 + horizontal resolution proj 2 + horizontal resolution proj 2 – overlap between projector + horizontal resolution recall projector + horizontal resolution monitoring screen, i. e. 1920 + 1920 – 384 + 1920 + 1920 + 7296 and a height of 1080 pixels.

Output Name Map Out Out
Out 1 VP1 top left:0;0 Size:1920×1080 top left:0,0 Size:1920×1080
Out 2 VP2 top left:1536;0 Size:1920×1080 top left:1920,0 Size:1920×1080
Out 3 VP Return top left:3456;0 Size:1920×1080 top left:3840,0 Size:1920×1080
Out 4 Screen Speaker top left:5376;0 Size:1920×1080 top left:5760,0 Size:1920×1080

Now let’s use the wizard to create the first two outputs with an overlap:
open the wizard, choose 2 × 1 for the arrangement and a cover of 384, a resolution of 1920×1080 per projector.
You see the first two screens: check that the extracted map area is correct and that the outputs are consistent with the extended desktop. You can also go to the soft-edge tab to validate that the soft-edge has been correctly calculated by the wizard.

The 2 outputs respectively VP1 and VP2 are renamed.

We will then manually add the other 2 outputs:

reminder output: A new output is created. She is renamed VP RETURN.
on Map parameter with top left: :3456;0 Size:1920×1080
on parameter Output: top left:3840,0 Size:1920×1080

stage return output: A new output is created. It is renamed SPEAKER.
on Map parameter with top left: :5376,0 Size:1920×1080
on parameter Output: top left:5760,0 Size:1920×1080

You can now go to the shape tab and display the Grid pattern on each output.

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