How to make scripts in easy language?

First question: Simple language script. If you mean the code that makes the file perform the task, you can double-click it.

Second question: create a clock, set the period (1 sec = 1000 ms), then double-click the clock and enter the code:

Analog key (# Enter key,,)

Third question: If you want to press the background button to work on a window, hold its window handle.