I apologize in advance if my text below is incomprehensible.
Well, I don't like the proposed changes.
Why?
1. The first column is translated, which is partly cool and partly not.
Cool, because for beginners the "Language" or "Title" view is more friendly.
Not cool because: the column is editable and that can make the metadata totally messy once you start editing those translated names. For this, the user needs to know how the meta tags were translated.
2. Although it was the same before – editing a long description in this form is a chore.
3. If the description is much longer than the width of the metadata editing window, the change of the value from the drop-down list (eg language) is displayed on the whole screen. Even with a normal window width, the width of all these dropdown lists is very wide. Additionally, with a long description, the first column is still hidden and we have to scroll the window horizontally.
4. How do I set up a custom schema for an identifier (eg MOBI-ASIN or BeckyBook or BookstoreName) since it can only be selected from the drop-down list?
5. EPUB2: Date with the "modification" event – if you click it, it proposes only codes from "dc:date-".
DiapDealer's solution – direct OPF file editing – not so bad
Becky