To add text inside the new item info window, you need to use the following item notetag:
<itemPageX>
The text that is displayed in the window
</itemPage>
X: The page number. Start with 1 and increase. Pages can be changed ingame with the pageup/pagedown buttons.* It uses Message Window formatting, so you can use message codes like \I[X], \V[X], ect.Example: