1. execute sgmapper
2. click menu > help > information
3. click licensemanager button in information dialog
4. click new key button in licensemanager dialog
5. enter the license key for the individual user below
6. click ok 

the license key for individual, education user (~2023)

1L0U8N8-F70YIP-1PYZQ6A-1UG653W-1T1IMOP-1IWGYTM-16EFLXL-14UPQKL-2TOA96-YJX81S-YWR6CL-ON34PS-1EPVUI9-17J2TF6-1C868ZA-14G1U0R