Hello Walter
Using notepad is useful because it becomes a scratchpad for your configurations. It’s easy to copy and past written commands into the CLI, and it’s easy to save snippets of commands and organize your thoughts before actually implementing the commands.
When you write them out in notepad, you see the commands in context, and you can edit them and change them freely. This is especially useful on production networks because you can edit the commands without the consequence of making a mistake and affecting the whole enterprise network, as experience has so painfully taught.
As for reading material, I don’t have specific experience with Safari, but maybe @ReneMolenaar has something he can recommend. You can also take a look at the following forum thread as well:
I hope this has been helpful!
Laz