Step1: Choose the template and get into the builder.
Step2: Click over the block of which you want to get the code. As soon as you click on the block, you get a horizontal toolbar at the top of that block. 4th tool in this toolbar reads 'Edit Code'.
Step3: Click on it and you will get the code for that block.
Learn more through video: https://app.meetzippy.com/replay/info/dYwXO1HI8tJyR6rO5Chr