Tutorial Bug - MIGX Manage Child Resources

Found a bug in the following tutorial which is stopping me from proceeding
http://rtfm.modx.com/extras/revo/migxdb/migxdb.tutorials/migxdb.manage-child-resources-in-a-grid-tv-with-help-of-migxdb

• Now we create our MIGXdb - TV.
• Create a new TV.
• Name: childstutorial


• Go to the tab: 'Input Options'
• Under 'Configurations' add: 'childstutorial'

There is no Configurations setting/field/option under the tab Input Options
I'm using Revo 2.2.7.

Any idea what the proper documentation should say?

When you select a TV type of MIGXdb you will get a new "Configuration" field.

Ah, I see. It doesn't specify that part clearly enough. How do I update the docs?

I just did

Thanks, Susan.
I've still no write-access to rtfm.
Think, I will give up after three unanswered mails to support@modx.com

Thank you Susan. I can now see my grid waiting for child resources to be created.

I have an issue at the moment whereby I create a child resource and when I click the "done" button, nothing happens and no child resource is created. But I got this far