Question Editor API Initialization
hidden_question
Set this to true in order to hide all templates of this type from the tile view in the Question Editor.
You would want to use this to hide the templates for this Question type, for example, if a newer type is available, but you want to keep the schema in order to support editing of existing Questions/Features of this type.
Values
Attribute path custom_question_types.editor_schema.hidden_question
Type boolean