Can at least the first request be implemented?
If yes, can I have a probable date?
I think it's possible to do it also because, for example, the ibkr booktrade has this option and that's why I often prefer it to the DOM. The DOM is a ladder book, it was created to be fast, you need to get out of the logic of using only the hotkeys. Visual trading is sometimes more responsive.
Of course it's just my opinion.
Thank you