"Connect to Directory" in Server.app

Hello. I'm trying to do something fairly simple — allow users from an external LDAP server to access services on my Lion server. Following Apple's instructions, I can't find the "Connect to Directory" choice in the Manage menu of Server.app. I always start by turning off OD by using Server Admin to configure as "Standalone Directory". This is what I see in Server.app after doing that.

Apple's instructions say if the Manage Network Accounts option appears, you need to first set up the server to host network accounts. So I click that option, which seems the be the same thing as creating an OD Master using Server Admin, as far as I can tell.

Then I try to add a new user. For some reason, the "type" dropdown list exists, and lets me choose "Imported user from directory", even though I haven't setup any other directory server. Of course, when I search for a username, it finds nothing. Apple's instructions say to now choose "Connect to Directory" from the Manage menu, but that option doesn't show up. I only have what shows in the screenshot above, sans "Manage network accounts" now. How can I get this to appear?