| Content | |
| Frame | The Interface Frame. |
| FunctionVariable | Interface for a function variable instance, i.e.: a function variable definition for a particular placeholder including the values actually defined and selected for this particular placeholder |
| ImageContent | The Interface ImageContent. |
| KeyLabel | interface for a key label pair as used as value list for function variable definitions e.g. |
| Placeholder | The Interface Placeholder. |
| Position | The Interface Position. |
| State | The Interface State. |
| TextContent | The Interface TextContent for placeholder |
| Transform | The Interface Transform. |
| PlaceholderDocument | The Class PlaceholderDocument. |
| Placeholders |
| PlaceholderAction | placeholder action types |
| PlaceholderState | The Enum PlaceholderState. |
| PlaceholderType | The Enum PlaceholderType. |