Thanks for a really helpful reply fbrimm, the code for your custom Field component was particularly useful.

Just for reference, the original problem that I was having (I only wanted a portion of the screen to scroll vertically, while the rest stayed put) was solved by subclassing MainScreen, calling super(Manager.NO_VERTICAL_SCROLL) in the constructor, and adding a VerticalFieldManager with Manager.VERTICAL_SCROLL to contain the ObjectListField where I wanted scrolling to occur. Not sure how I missed this first time around - I thought I'd tried it and it didn't work but it's fine.

Strangely, the Status field doesn't render on a 7100t, despite appearing as expected in the emulator, has anyone encountered this on other devices?

Cheers,

Leo