I created an alternative to the default WordPress Admin panel for my writers to use as I wanted more flexibility (in design) and a simpler interface. I've been successful thus far but I can't seem to figure out how to take the "Add New Post" page from the default wp-admin to my custom page.
What I mean is, I would like to take all of this

and put it on my own page. I've looked over the post-new.php and edit.php scripts but have had no luck.
Is this even possible?
I have just discovered the wp_editor function...but is it possible to add all the other things from the "Add New Post" page as well (such as the featured image, tags, categories sections, etc...)?
/wp-admin)?