Change message placeholder

Is it possible to customize the placeholder text in the message field for each bot individually? Currently, the placeholder for german is "Bitte trage deine Frage ein". In English it is “Start message”.

For us, this is not ideal because in German we capitalize certain pronouns , and so the current placeholder-text doesn’t align with how we communicate normally. It would be really helpful in general to have the placeholder message customizable to better match the style and purpose of our chatbot.

Thanks in advance.