The Statement class UI is controlled by its ObjectDrawer (found in the “StatementDrawer.cs” file). ObjectDrawers work very similar to Unity ObjectDrawer which means that the UI code in them overrides the default UI. Thus if you’ve added some fields in the “Statement” class, you will need to also please add the appropriate GUI code in the “StatementDrawer” class to show that field.
Please let me know if this works for you.
Thank you.