I'm going through the trailhead Identity for Customers.  In the second unit, Prepare Your Org for External Identity, the instructions to create a profile is to clone the standard profile External Identity User.  I'm in my dev org and I do not see that profile.  What would I need to do to get that profile to be visible?

I'm going through the Case Feed trailhead and I'm noticing that I cannot create case feed filters.  Do I need to have the service cloud console enaled in my developer edition?

I'm going through the trailhead Identity for Customers.  In the second unit, Prepare Your Org for External Identity, the instructions to create a profile is to clone the standard profile External Identity User.  I'm in my dev org and I do not see that profile.  What would I need to do to get that profile to be visible?