Comment on the new citation dialog in Zotero 7 beta
Not an issue, but a personal note. I prefer the previous behavior, i.e., using the space bar to add the next item in the selected items section, rather than the down arrow. It is more natural when using both hands (left on space bar, right on enter).
It seems just as quick — quicker, actually, because there's no delay — to just press Enter - Down - Enter - Down. And the fastest option would be to just use Shift-Down-Down-Down-[…] to select all the items and then Enter once to add them all together.