ID 320868 - Multi-Monitor support for the Catalog tab

Problem summary
When users are using multiple Monitor tabs in their Projects (e.g Comparing two full images side by side), the Catalog will not update for any new Monitors.

This can be quite confusing, as users expect the Catalog to recognise that they are using the second window.

In the Example below, when the user switches to the second monitor, the Catalog does not update to the second Monitors output.
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Customer reported version
katana.2.6v3

Customer reported platform
windows7

Steps to reproduce

1)  Open Katana and create a small scene. (PrimitiveCreate, CameraCreate, GafferThree merged together)

2)  Create a few different looking Preview Renders (Edit the GafferThree light color, preview render the Marge node, repeat)

3)  On one of your tabs, right click the top left corner and create a new Monitor tab

4)  Select the original Monitor tab and use the arrow keys to switch between preview renders (You should see the Catalog update)

5)  Select the new Monitor tab and skim through the previews with the arrow keys

Result: The second Monitor will not update the catalog with its current positions.

Workaround
Unknown.

Reproduced by support
This bug has been reproduced in:
Katana2.6v4 - CentOS6.9 - Windows 7
Katana2.6v1 - CentOS6.9 - Windows 7
Katana2.5v6 - CentOS6.9 - Windows 7
Katana2.5v1 - CentOS6.9 - Windows 7
Katana2.1v6 - CentOS6.9
Katana2.0v5 - CentOS6.9

Earliest version tested
- This issue appears to be in all versions of the product

Expected behaviour
When the second Monitor is selected, the Catalog should automatically change to the second Monitor (Or have the option to switch)

Actual behaviour
The Catalog does not recognise multiple Monitors in the project.