if they are SA or LS and need switched open an elevated command prompt  "%CommonProgramFiles(x86)%\Autodesk Shared\AdskLicensing\Current\helper\AdskLicensingInstHelper.exe" change --prod_key INSERT LICENSE KEY HERE --prod_ver 2020.0.0.F --lic_method "" --lic_server_type "" --lic_servers "" make sure you insert the correct license key, can be found here https://knowledge.autodesk.com/customer-service/download-install/activate/find-serial-number-product-key/product-key-look it will seem like nothing happened, but then you can open application and it will ask you what license you want to use

https://knowledge.autodesk.com/support/3ds-max/troubleshooting/caas/sfdcarticles/sfdcarticles/How-to-change-or-reset-licensing-on-your-Autodesk-software.html#2020