Hello! It's possible to add the marquee anywhere, really, but I can't help unless you share code of what you tried and outline what you want it to look like.
Thank you for answering me!
I have sent you an archive with all the necessary data. This is the code of the novel itself, your file "01_marquee", an example of what the running lines should look like, and, just in case, the dialog box itself.
https://dropmefiles.com/vMUMQ
https://dropmefiles.com/vMUMQ
https://dropmefiles.com/vMUMQ