You're welcome.
I noticed that I have coded the list box to remove the item selected from listbox1 once it is transferred to one of the other listboxes. If you do not want this to happen, comment out or remove this line..
ListBox1.RemoveItem i
from both of the CommandButton codes.
I haven't coded the add attendance button yet because I wanted to make sure I was doing what you wanted with the other code 1st. I'll work on getting the code done as soon as I can.