As of R2020a, the silent installer does not have an option to install the License Manager silently. In order to install the License Manager on a machine that requires a silent installation, you may manually install the License Manager with the License Manager binaries.
For information on manually installing the License Manager, please refer to the following article:
If you are not a license administrator, contact your administrator for assistance. Your license administrator's contact information can be found on the "Contact Administrators" tab when viewing your license in the MathWorks License Center.
Best Answer