For external links, Import["https://en.wikipedia.org/wiki/Main_Page" , "Hyperlinks"] should work too

This option isn't in the documentation! I've reported this absence

Try this to get an understanding of what I'm saying. Note: you may need to change the value of n to get this to work on your machine: n = 2; Dynamic[# -> ControllerState[n, #] & /@ ControllerState[n, "Controls"]]

Related: In 12.0, there is a "New Document" button in the Touch Bar. In addition, it is possible to make your own functions that utilize the Touch Bar. For example: n = 1; controls = Select[ControllerState[n, "Controls"], StringStartsQ["X"]]; GetStates[] := Clip[Sort@ Rescale[DeleteCases[ControllerState[n, controls], -1.], {-0.75, 0.32}, {0, 1}], {0, 1}] Dynamic[ Plot[Evaluate[Sin[(1 + GetStates[]) \[Pi] x]], {x, -Pi/2, Pi/2}]] Credit to SGHuisman from Twitch. A more general example for the uses of this, just type: Dynamic[ControllerState[]]

Related: In 12.0, there is a "New Document" button in the Touch Bar. In addition, it is possible to make your own functions that utilize the Touch Bar. For example: n = 1; controls = Select[ControllerState[n, "Controls"], StringStartsQ["X"]]; GetStates[] := Clip[Sort@ Rescale[DeleteCases[ControllerState[n, controls], -1.], {-0.75, 0.32}, {0, 1}], {0, 1}] Dynamic[ Plot[Evaluate[Sin[(1 + GetStates[]) \[Pi] x]], {x, -Pi/2, Pi/2}]] Credit to SGHuisman from Twitch. A more general example for the uses of this, just type: Dynamic[ControllerState[]]

@MarcoB, it's not quite what I want, because I want to be able to extend it to when the user doesn't input the exactly correct name; that's why I want to use interpreter. Note that Interpreter["Quantity"]["meter"] fails. I don't mind what the FullForm output is. I just want `Interpreter["Quantity"]["Unit"] to return unit. However, it fails

In recent years, Wolfram|Alpha will have a "Show Code" option under many of its outputs.