1.- The first thing to do is to add a subproject and give it a name, for example, "Subproject":

2.- Move the AP to the Subproject where we need to have a different SSID. (Monitoring--->AP---->Select AP ---->More---->Move to)

3.- Enter the subproject to verify that the AP has been moved correctly:

4.- Add the SSID for the Subproject: Configuration Menu--->Wireless Basic--->Click on the Subproject.

Add the new SSID, customize it, and save. Upon completion, you should see that this AP is broadcasting a different SSID than the other AP.

5.- Validamos SSID.