Yes, possible – that’s what I am using CFS for. Just create several nested loops for different sections. To clean up the admin interface I am using some lines of custom JS that hides the “add row” buttons etc.
Thanks for your feedback! So I assume putting something like this in the wp_config should work?
define( ‘WP_POST_REVISIONS’, 3 );
define( ‘CFS_REVISIONS’, TRUE );
Regarding preview: yes, when I preview an already-published post, the changes in the custom fields are already saved permanently (i.e. also showing up in the public non-previewed post).
//Edit: just checked – I can confirm talgats observation that the above-mentioned preview issue also occurs with CFS_REVISIONS TRUE