Hello Jerkoo,
sorry for the late answer, but we have a new member in our family, so that process has highest priority

.
You are right, when this file is missing there will be no clouds.
The batch file will create 2 new pictures for day and night, which will already contain the actual clouds.
This will reduce a little time to render all 3 maps together when you are rendering the new planet.
I have attached a zip file containing the batch and the config file to create the new maps.
Please have a look at the text files, I think they will explain themselves.
Markus