Control android devices remotely
You can get auto clicker apps that can be setup on each device, My personal favourite is  HiroMacro        

Another noteworthy one would be
Android Bot Maker

Hiro is better for touch based automation however ABM is better for full control.     

Both these suggestions require root access on all of your devices to work

You would simply setup the first device and then export the data to an SD Card, Applying the data to all programs on each device.   

I'm sure most of the answers you are looking for will require root access to manage things like clicking and keyboard access automatically. 

I hope this answers your question