I am developing a meta box for my custom publish type. You will find multiple fields where I must use wysiwyg editor instead of <textarea>. It's easy to add multiple editors to some meta box?

I'd really thank you for help!

Thank you. Dasha

Try the custom area template wordpress plugin http://wordpress.org/extend/plugins/custom-field-template/

First install TinyMCE Advanced wordpress plugin. Second add "theEditor" class for your textarea such as this

`<textarea  class="theEditor" name="custom_meta_box"></textarea>`

Thats it )