When you are in the "Statements" tab and are viewing the statement "In HTML", clicking "Edit with Preview" opens an empty form.
"Edit with Preview" form reacts to ESC button when it's not supposed to: for example, if you've opened "Edit with Preview" form and called Chrome's built-in Task manager, closing the task manager with ESC button also closes "Edit with Preview" as well.
"Edit with Preview" works with some bugs: