**Please note, this will be the same for ASEBA-PC and ASEBA-Web.
First, from the directories tab, right-click the assessed person you want to move and select "cut". Next, right-click on the assessed person you would like to merge to and select "merge". Finally, click "yes".
For a video walkthrough of this process, please see https://youtu.be/y6AsXzVW494.