...
Conversation Editor Options
The options in for the conversation editor are can be accessed using the Options button : 
...
The toolset doesn't seem to be able to load a spell checker file/this functionality is disabled, meaning this section might as well be ignored.
...
directly: See Toolset Options for details.
Data Panel
The Data panel at the bottom contains the bread and butter text editing, scripting and actions the conversation can do:
...