This parameter is not supposed to be visible on normal frames in the editor (unless you switch to advance mode, which shows everything), and for a good reason : it's contextual.
What do you think it would return to if you just tick the box on a normal frame ?
It's only supposed to be used when in a psyche locks conversation.
If knowledge can create problems, it is not through ignorance that we can solve them. Si le savoir peut créer des problèmes, ce n'est pas l'ignorance qui les résoudra.
( Isaac Asimov )