TextArea hint possible with MBS?

I need a desktop TextArea.hint property that works like TextField.hint. Before I roll my own, is this possible with MBS plugins?

There is no placeholder text property there.

Feel free to make a boolean flag yourself whether field is empty.
If empty, put in some text and set flag.
If you get focus and flag is set, clear it and text.
In LostFocus, set flag again if empty and put in the placeholder text.

It’s a bit fiddly to implement but not really complex:

Thank you both for confirming that it has to be coded.