Really? I don't see any option like this in Sibelius. I do see an option like this in Dorico. But perhaps I do not understand what you mean.
My comment was a response to this suggestion:
"p dynamic = Shift-D, p ENTER
"Allegro" = Shift-T [type ALL] then down arrow to select, add your q=xxx metronome in the same motion.
Gotta use the popovers not click in menus."
And yes, Dorico has a metronome icon, but as far as I can tell you cannot type in your tempo, there are no room for adding decimals, but clicking on the quarter note seems to only make it blue, and up/down arrow doesn't seem to be clickable. If you click or double-click on the tempo default (120) after you clicked on the quarter note, things are still confusing. In Logic, tempo is shown with four decimals, and you can either just type in the value you want, or grab the displayed number and drag up/down. Clicking on "120" and dragging up down doesn't do anything. And in order to find out what I can do with the blue background behind the quarter note and the ↕ symbol, I need to google, I guess. My main problem with Dorico is that it's full of situations like that. I certainly don't feel at home among the RTFM-crowd, I'm all MMR (make manuals redundant).
IMO there are two main types of software companies: those who always try to implement the most user friendly way to perform an action, and those who don't. Even if plan to start to use Dorico actively at some point, that software is the best example I can find as a perfect example of software which hasn't been designed, from day 1, without main focus on making it's functionality self-explanatory/obvious/in your face. It's brilliant in many ways, clearly better than Sibelius and Finale on most areas, and I have bought several updates after the initial version – but every time I have tried to get used to it's logic (or lack thereof) I come across too many functions that could have been implemented in ways that are a lot more self-explanatory than what they came up with.
Regarding the Allegro (etc) list, I don't even know where in Dorico it is – I typed Allegro in the Help field and got "No results found" in return – but let's not forget that these mainly Italian terms popped up long before metronomes existed – the word Allegro was apparently first seen in 1535, while metronomes pretty much was a 19th century phenomenon. Beethoven was one of the first major composer to use one, but that's probably because he was a friend of Mälzel.
It's good that Dorico is better than Sibelius in this area, I hope it catches up in the areas where Sibelius still is best/easiest to use.
My main frustration with both Dorico, Logic and other apps I have tried has been that I most of all want the software I use to be as 'intuitive'/fast/easy to use as my hands:
– If I want to invert a chord, I can do that in a split second on a piano, so I don't want that to need more than a key command in music software.
– If I want to check out how a chord would sound if I change only one of the notes, I'll simply lift my fingers from the piano keyboard and play the altered version. All music software should offer a way to alter one note in a chord with a key command, in a way which will play back the full chord but with the changed note.
– All relevant music software should also IMO have a way to go to the next chord with a key command which plays the full chord (if there is one), not only one of the notes.
I also want music software to offer more stuff than I can do manually. For instance, I hope the apps I use to implement a 'go to next' key command which will not only play the next single note the current track, but play that note along with all other notes
on all tracks at the same position. Composing software should have chord related key commands like "spread chord notes" or "collect chord notes", because eg. a Cm9 may sound very different depending on how far the involved notes are from each other. In general I'm more optimistic about Dorico than the competition (in terms of notation and composer friendly features), but that doesn't say much: Sibelius isn't developed properly, Apple doesn't have that kind of focus, and I never really liked Finale.