I once (idly) closed the File Preview in the Editor, and since then I have not been able to open it properly again.
Instantly the HTML file view expanded and swallowed up the space there the File Preview had been. When I re-opened the File Preview, it was in a separate window lying across the right half of the HTML file view and partly covering it. I have not managed to push back to HTML so to speak and open File Preview next to it again. This makes using the Editor extremely awkward, as I must constantly open and close the File Preview if I want to see all of the HTML.
Can someone here very kindly help me? Thanks ever so much!