If you could please enhance the Check Spelling option by incorporating features akin to those found in the Find/Change button, it would greatly improve user experience. Specifically, having an "Ignore/Include Masters" button during the spell check process would be particularly beneficial. This addition would allow users to seamlessly choose whether to disregard or include master elements in their spell-check sessions, thereby providing more flexibility and efficiency. Such a feature would streamline the editing process, especially for those working with complex documents, ensuring that they can focus on the necessary corrections without disrupting their workflow. Your attention to this enhancement would be immensely appreciated, as it would cater to the needs of users who require greater control over the spell-checking functionality. Thank you for considering this request!