The InPlace Editor shows a field viewer and the Current Error pane that displays an error description for the selected field. The InPlace Editor is optional. It is useful for showing the document that is validated. You can have the editor either docked to the top or the bottom of the layout panel.

These settings can only be set in the validation form layout for classes, since there is no separate InPlace Editor for the folder fields. Therefore, for folder validation form design, this setting is unavailable.