I'm also looking for a way to do this
I've seen this,
https://vborg.vbsupport.ru/showthrea...sed+on+default but people without javascript cant reopen the box.
Or you could use this code after the box is created within the template that holds the box.
Code:
<script type="text/javascript">toggle_collapse('IdOfBoxToCollapse')</script>
But if you use that, when you reload the page it simply toggles the box open and closed which is probably also not what people want.
We need a close('IDOfBoxToCollapse')