Unable to toggle Touchpad in Settings using only keyboard
Feature summary
It is already possible to (CTRL-)TAB over the elements in the system Settings using just a keybaord. Unfortunately, I haven't found a way to toggle a switch using ENTER/SPACE/whatever.
I've found it useful when I confused "Natural Scrolling" with its neighbor "Touchpad" (on/off) and I disabled a touchpad completely. Having no mouse attached, I wanted to bring it back using only keyboard, however, no (known) way to switch a toggle complicated that thing.
How would you like it to work
The ENTER key should change a state of the currently selected/focused settings elements.
As an enhancement, also sliders (such as "Mouse speed") could be controlled using a keyboard.
Relevant links, screenshots, screencasts etc.
Tested with Gnome 41.