Just type the commands in, and then use the instructions that are shown to continue to the next command or submit the commands of that certain type (once or looping forever) to be generated afterwards. THIS GENERATES ONE COMMAND BLOCK THAT RUNS SEVERAL COMMANDS IN MINECRAFT.
Reasonably straightforward once I had the template for these mechanisms, but useful nonetheless. Sorry about having to select and copy and paste several lines at the end, I couldn't find a better way to send a bunch of text through the script to the clipboard.