Thanks so much for making and sharing Mini Loops! I had been looking for a flexible widget that would let me display the entire contents of a post along with custom fields and I hadn't found anything I really liked.
I ran across your plugin when I saw it listed as one of the first that used the new WordPress plugin repository image banner feature. I gave it a try and it was perfect for what I had been working on. The variety of shortcodes available in the formatting fields along with a little html provides a lot of power. (I immediately added a small thank you to your Starbucks card and I encourage everyone else who is enjoying this plugin to follow your donate link and do the same or give a small donation.)
I hope you don't mind if I toss in a few feature requests...
1. It would be great if there was a way to specify an HTML id or class for the entire widget for custom styling. Sure, I can grab the automatically numbered id, like miniloops-2 but it's more reliable to assign a specific class or id that won't change as I use instances of the widget.
2. I'm finding that I'm using the Before Item and After Item formatting fields to add a good deal of markup to include additional content around the list of post content. For example, I might have a little intro text followed by the list of post title links, followed by some text and a link to see all of the posts. It would be helpful if these fields were larger so editing was easier.
3. As in my previous example, I often display several posts and then include a link to read all posts of that type. I'm able to accomplish this by hardcoding the link to the post archive page but it would be very useful to have additional formatting shortcodes for the selected post type archive url and post type name.
I've grabbed those values in a theme before with code something like this:
$post_type_obj = get_post_type_object( $post_type );
$post_type_name = $post_type_obj->labels->name;
$post_archive_url = get_post_type_archive_link( $post_type );