How to construct the statement...

I will walk you through the process one step at a time.

For illustration purposes:

• I will disable the existing for loop
• I will construct a new one right below it

You can compare the (disabled) complete version with the various stages of incomplete versions in the screen shots that follow.

I will also eliminate the explicit duration parameter and accept the default value of one second to make the statement shorter.

(I need to do that so that the screen shots will fit in this narrow publication format.)