In my previous post, How to Effectively Use the Blog Template with the Genesis Easter Egg, query_args, I discussed how to create single category pages and single custom post type pages with a caveat explained how to use shortcodes to get the desired content as well as the look and feel that you want.

However, if you wanted to get a bit more fancy like integrating multiple custom post types or multiple categories, that can be a bit more complicated. However, it isn't, if you know how to use query_args and query strings. With multiple categories, WordPress is looking for a comma separated (with no spaces!) list of categories. Your query_args would be: cat=3,7.

However, this will not work with post types! Instead you need to "build an array of post types via query string." Your query_args would be: post_type[]=post&post_type[]=wps_cpt1&post_type[]=wps_cpt2

So, if you wanted to combine the query where you show only posts from the post post type and your custom post type that share a specific category (WordPress built-in categories), then your query_args would be: cat=3&post_type[]=post&post_type[]=wps_cpt1.

So, when I said "your possibilities are almost endless" with using the Genesis Easter Egg, I meant that your possibilities are almost endless!

wp_nav_menu() has a filter, wp_nav_menu_args, right after it parses the function arguments. This essentially allows you to change the menu at any time. So, if you want to have a different menu for administrators, editors, authors, contributors, and subscribers, you can easily do this via the wp_nav_menu_args filter hook.

First, you will need to check the theme_location of the menu. If you utilize menu theme locations, as your theme should, then any time the location is empty, it is because of the Custom Menu widget. Personally, I wish WordPress would have placed that in the arguments; however, as it stands now, 3.4.2 and 3.5.0, it is what it is.

Use Justin Tadlock's Members plugin to create new roles and new capabilities to further expand this.