Direct Commands to increase/decrease the volume, change the font size, adjust the brightness, set vibrate/silent mode on etc can be added.

[VR8147]

Describe the solution you'd like Direct commands i.e device level commands to control the above mentioned functionalities and similar to those.

Describe alternatives you've considered Can achieve it using UI. For example Settings>Accessibility>Turn vibrate mode on.But it is time consuming and required extra effort.