Just to remember: you can press the numbers twice to have the dotted value.
I don’t know about a single midi device (with switching between drums and note values on the same pads, etc…). But, besides other options as Streamdeck, I am experimenting this days with Voice Control on Mac (in conjunction with the Shortcuts app and keyboard Maestro or Better Touch Tools): after an initial setup you can speak the value, and Dorico will switch it. It is like magic (there is a slight delay thought). Is also possible to map the values and the note names (and of course all other commands), so you can dictate all with your voice. (you can also switch the language in Voice control for better recognition, as my bad English will often be misunderstood).
[EDIT: instead of using Keyboard Maestro and Shortcuts app you can also record a macro directly in Dorico, that records the quarter value choice, and then choose the Select menu… function in Voice Control, pointing at the name of the recorded macro: much faster :-)]
Here a showcase of how it works 
in practise:
For whom may be interested, here is how I did this (for switching to a quarter note Voice Command= “quarto” in Italian)
[EDIT: instead of using Keyboard Maestro and Shortcuts app you can also record a macro directly in Dorico, that records the quarter value choice, and then choose the Select menu… function in Voice Control, pointing at the name of the recorded macro: much faster :-)]:
- Define the shortcut macro in Keyboard maestro:
- Define the use of that macro in Shortcuts app
- Define in Voice Control the spoken word, the app, and the Shortcut(of Shortcuts app) that should apply:
