[by Rob Ferguson]

Hi,

Take a look at this post re how to extend a TriggerField:

http://kiahu.com/wp-content/uploads/2013/03/Contact-General-tab-LookUpField.png

->...

[by Rob Ferguson]

Hi,

I think that it may have been related to the use case where the user resized the browser window and then used the navigationPane (the west container) to navigate to another nested Presenter.
...

[by Rob Ferguson]

Hi,

-> When adding a new child, forceLayout() must often be invoked on the parent to inform it that its sizes have changed, and new details must be accounted for. This isn't always necessary, but...

[by Rob Ferguson]

Hi,

I am using GXT, GWTP and nested Presenters without any issues. I am also using a variation of the MVP design pattern that utilises UiHandlers.

You might like to try using a VerticalLayout...