To add modules to ASEBA PC, click on the "Add ASEBA-PC Modules" icon from your desktop. You can also find this under Start and then All Programs. From here, find the "ASEBA" folder, click it, then you can click on "Add modules to ASEBA PC".
Alternatively, you can find the "add modules" feature by going to the ASEBA folder (C:\ASEBA\ASEBA-PC 2015 v1\Licensing), then opening the licensing folder and clicking on the executable file.
The products you have already installed will be listed in the white space in the center of the page. To add more modules, please type in the serial key at the top, and when finished, click on "Add New ASEBA Modules" at the bottom of the page. You will see a message saying "New ASEBA-PC modules added successfully!".