As I go through my first time manually correcting faces, I find myself wasting a lot of time trying to pick exactly which landmark I need to move, especially when the face is very misaligned. Many times, I would accidentally select a landmark that should be used for the mouth when my goal is to edit the mesh of the jaw (this could use an undo button as well). After I realized the landmarks were numbered for a reason, I was able to be a little more precise but it takes a while to get the one you are after, when the face is a jumbled mess.
Adding the ability to zoom farther in when editing your landmarks would help greatly to quickly edit misaligned faces. In addition, differentiating somehow between the different meshes (ie mouth, nose, eyes, etc.) would also help so that if you only need to edit a certain aspect, you know just by looking, which landmark needs to be moved.
Finally, is there somewhere I can find a template for what "constitutes" different landmark features? The mouth is often the hardest to edit because there are many points that I am not sure exactly where on the mouth each is supposed to correspond to. It seems that the "mouth" mesh has a set number of landmarks that does not change, but a guide to where each point should go would be very helpful. Anywhere that I can find this?