Use the 'Note' block to make it easier for you to navigate through a complex script with many branches, separate chains, and stand-alone blocks. This block does not affect the script and can be used for communication within the team. This is especially important when more than one person is working on the bot at once.
The note does not need to be connected to other blocks. It can be used so that you remember to change the text, or so that you can understand, without looking at the chain, why so many branches of the script have been made. Or you can just leave a note for a colleague.