+1
I would LOVE this feature! I have a page with a ton of field groups, which makes for a very intimidating user experience. I’d prefer that the meta boxes start collapsed, so they can choose to expand the boxes they wish to edit.
[update]
In case anyone stumbles across this, I found an interim solution using javascript. Install this plugin: http://wordpress.org/plugins/add-admin-javascript/
And then, on the plugin settings page, in the “JQuery” box, paste this code:
$('.acf_postbox').addClass('closed');
You may want to edit the .acf_postbox to be more specific, but this will collapse ALL acf meta boxes on page load.
