Enabling Steam Family Sharing

Question

I'm trying to share my steam library but Valve seems to have updated their interface without updating their docs.

Every Tutorial I look at features the settings window with a horizontal tab bar, mine has a vertical list and no "Authorize" button.

I've been on the Beta Channel for years and the client updates regularly.

Has anyone been able to enable family sharing through the new interface?

Edit: I am logging into both accounts from the same PC.

Answer 1

When this question was asked, Steam Family Sharing was in beta. However, as of March 3rd 2014, Steam Family Sharing is out of beta and available to everyone.

If you open that tab now, you should see a screen like this: