How to mark a login as a Favorite on Mac

I have never used Favorites, but my wife just asked me how to mark a login as a favorite, and it took me more than twenty minutes to figure it out. Searching the Knowledge Base and the Forums didn't lead me to an answer. I'm posting this comment to help other users avoid all of my mistakes, and to encourage an improvement in the interface and documentation.

The User's Guide says: "Favorite button. Click the Favorite button to quickly mark an item as a favorite. The star will become illuminated to indicate that it is a favorite. Click the illuminated star if you no longer wish to have the item marked as a favorite."

This answer doesn't give any hint as to the starting conditions, nor does it tell me whether I can do this from the browser extension, 1Password Mini, and/or from the full program. I tried all three, and none of them work as described. Maybe I was starting from the wrong place(s), but my main problem was misunderstanding the words in the explanation. In the full program, 1Password 6.3.3 for Mac, running on El Capitán 10.11.6 with all updates, I can select Logins in the sidebar, and then select a specific login that I want to turn into a favorite. Then I click the Favorite button, just as the User Guide instructions indicate. My screen changes, so that at the left is the sidebar; covering the right 60% is a blank space, except for the 1Password logo in light grey on the background; and left of center is a column which says "Favorites. Add your favorite items here for quick access." Since I have been trying this for twenty minutes, that "quick access" is ironic.

I've tried every way I can think of to "Add my favorite items here", and none of them work. Right-clicking does nothing. Clicking the Plus button on the right side of the screen gives me the chance to enter data for a completely new login, and for 16 other options. But aside from typing in all data, drawn from my memory???, into each field, I didn't find any way to "Add my favorite items here".

What I finally figured out was that in the full program, "Click the Favorite button" didn't mean Click the button in the sidebar labeled 'Favorites', with a star icon next to it. No, it means click the small star outline in the edit window for the login, to the right of the login logo, under the login name, and to the left of the "Send to" icon.

For someone who already knows how to do this, it probably seems obvious. But for someone who is looking for something that looks like a button, it is very confusing. That person (me) must avoid clicking something that looks like, is labeled as, and actually is a button in the sidebar. Instead, the user must click on an obscure outline in the data edit window, which looks like a status indicator, rather than a button.

Having finally figured this out, I see that I can designate a favorite from any of the versions of the program. It's counter-intuitive that you can edit the Favorite status of a login in the edit window, without clicking the Edit button. But that saves steps, so I am not recommending changing it. In the browser extension and 1Password mini, every other button in the edit window looks like a button. In the full program, all the buttons look like buttons except the Favorite and Send To buttons.

1Password Version: 6.3.3
Extension Version: 4.5.9
OS Version: macOS 10.11.6
Sync Type: Dropbox