Incorrect firewall tutorial

Hello,

I’m trying to allow everything on my local network while blocking everything outside.
I’ve found this tutorial on comodo site:

But the images don’t match the text.
And I don’t understand how a single rule could solve the need.
So what is the correct way to do that? Can the documentation be fixed?
Note: I use Custom Ruleset and Create Rules For Safe Applications firewall settings. v12.1

Create a global block outgoing rule with destination address set to your home network zone with the exclude option checked. That way all outgoing connections are blocked except traffic that has a destination IP address that is within your home network IP address range.

OK, This makes sense.
Thanks for having confirmed that the comodo tutorial is wrong.