Nav GUI - Expand capabilities of "Show Selected Axis in another view" feature of the Axes Monitor Window.

The suggested new capability would be to allow the operator to "add" an axis (or axes) to a secondary Axes Monitor window that has been created from the main Axes Monitor window.

When managing large shows with a high Axis count, the user can use custom Groups and Tags as well as the "search box" to quickly locate axes. Once these are located, the user usually stores a Desktop that will save the arrangement of windows, their filtering options as well as sizes and location.

A feature that several programmers and operators find useful is the "Show Selected Axis in another view". It allows the user to create a selection inside of the Axes Monitor window and display the selected axes in a new "Axes Monitor Window" that gets spawned as a child.

Currently, once a selection has been made and new window has been created, the user is unable to add to this window. 
Allowing the drag and drop of axes from the main Axes Monitor window to a child Axes Monitor window would be useful. A similar command via the right click menu would be ideal.
Lastly, we could include the copy/paste combination via shortcuts and mouse clicks as well.
Thank you,
Jero

Axes Monitor window, showing 3 axes.

Creating a new "Axes Monitor" window, that will only show a subset of my total axes count.

I now have 2 Axes Monitor windows, the original "Main" Axes Monitor window that is the Parent and the new one, which is the "Child".
I would like to be able to add things to the child dynamically via the GUI interface.
(Please imagine that my show has 50+ axes and not the 3 created here for the screenshots)