If you’re trying to make a List similar to your Life List (automatically created when you signed up for an iNat account), I’m afraid it doesn’t work like that. I tried. Lists are by taxa (species and such), not Observation.
What are lists?
Lists are simply lists of taxa (not observations). For example, you could make a list called “My Favorite Turtles” and add all your favorite turtles. There are a number of different kinds of lists, and they behave in different ways.
Just a simple list of taxa with no special behavior.
Automatically updates based on your observations. Everyone on iNat has a default life list that contains every species that person has observed. If you delete an observation or change your ID, the species will get removed. You can also manually add taxa to your life list just like you can with an ordinary list. The species you add manually won’t get removed if you observe them and then delete the observation.
You can also make additional life lists for specific groups of organisms, like a life list of birds, or a life list of milkweeds.
To keep track of my Observations that have not yet reached Research Grade, I keep a tab open in my browser (you could bookmark yours for later reference) that searches for Needs ID, Your (that is, my) Observations, with myself as Person. I made the Date Added Asc(ending), as I’m not particularly interested in my most recent Uploads which might not have been around long enough to attract and ID.
(You could, of course, create another search that looks for Research Grade instead of Needs ID… or any other criteria you want.)