When you have a short list of users to invite to a group, and you decide to do it manually, one-by-one, it would be helpful to see a running list of the users you have already added as you go through the steps. This can you keep track of where you are in adding people from your list.
For example, if have a list of six people to add, and you would search for the first user, and check the box to add them, then search for the next user and check the box to add them, and so on. As I add each user, the Selected count shown at the top of the list does increment, so if I had a numbered list, I could use that value to keep track of where I am. If I don't have a numbered list -- and even if I did -- it would be helpful to see the users I have already added listed in some obvious, in an easy to see and track manner.
For instance, the users who have already been added are shown in the list with their checkboxes checked (when no search terms are active.) Once I start to search for the next user on my list, however, they are no longer displayed, if they don't match the current search. Instead, they could continue to be displayed at the bottom, but grayed out, with their checkboxes checked, when they don't match the current search terms, thereby providing a running of list of people already selected to be added to the group.
