How Can I Put HTML In Extras Fields?

The fields under the Extras tab of an article support HTML content, but they don't have an HTML mode for editing. So it can be difficult to add or remove special characters or formatting.

The easiest way around this is to keep a 'scratchpad article' handy. Put the cursor in the Extras field you want to edit, and hit Ctrl-A Ctrl-C to select and copy the entire contents. Open your scratchpad article, put the cursor in the body, and hit Ctrl-A Ctrl-V to replace the entire body contents with your field's content. Now you can switch to HTML view and do what you need to do.

Once you've finished editing the item, hit Ctrl-A Ctrl-C to copy it all, then put your cursor back into your original Extras field and hit Ctrl-A Ctrl-V to replace it with the new contents. Easy!

Thanks to TK for this tip.