Keyboard Interaction

Hi Joey, 

Thanks for your reply. 
Yes, I need to get the key input from the user. But I was not sure if that works on mobile devices as well as the computer. If we do not have this feature, would you please help me to find another solution? 

This is what I want to do:
During the eLearning module, I explain the hotkeys to use a system, such as Ctrl+Alt+S and Alt+. 

Now for the knowledge check, I want them to remember the hotkeys. 
There is an illustration of a keyboard (attached image) on the screen. 

My first thought: users click on their own keyboard of their devices and it shows on the screen; which if I understand, is not working on Storyline. 

My second thought 🤓 I don't know?! Please give me a solution to make it happen or any other way to make some activity for the user to learn essential hotkeys. 

I appreciate any help you may provide,