Some of the preconfigured actions (listed under OS X functionality) don't mirror the default macOS behavior. For example, if a button is created with an action for mission control, tapping on it will activate mission control, but a second tap (keypress?) does nothing (I expect mission control to be deactivated as that is the default behavior in macOS).
Similarly the small volume up/down doesn't mirror the behavior of a standard keyboard where the volume key (virtual key) can be modified when pressing volume down + shift + option.
Is there anyway to configure these features through a combination of actions or can this be added as a feature?