The process of adding a motorcycle endorsement to your driver's license varies depending on the country and region you're in. In many places, you need to undergo additional testing and training specific to motorcycle operation.
To find accurate and up-to-date information about adding a motorcycle endorsement to your license, it's best to consult the official website of your local Department of Motor Vehicles or the equivalent government agency responsible for driver's licensing. They will provide you with the specific requirements and procedures to follow in your area.