live input broadcaster for several windows of the same program

I need an input broadcaster software that will copy each live input (from mouse & keyboard) to several windows of the same program and able to perform delayed actions. Example: 20 Chrome windows are open (not tabs) and when i google e.g. "Pictures of cats" i want it to write on every of the 20 Chrome windows. BUT! not all at once since it could put unnecessary stress on my PC. I want the possibility of having Delayed Action, meaning there will be e.g. 2 second delay for every action on each window. Needs to be able to open each already opened window manually instead of doing it all in the background.