Project Pane: At the top of the project pane, click the actions menu icon to open the actions menu. From the menu, select Migrate:
Design Canvas: Along the top of the design canvas, click the orange deploy/migrate icon. From the menu, select Migrate:
Upon selecting this option, a migration configuration screen opens where you can choose the target environment:
Current Environment: The environment where the project is located will be listed.
Target Environment: Use the dropdown to select the existing target environment that you want to migrate to.
WARNING: If a project with the same name already exists in the target environment, all project components, including values of project variables in that environment, will be overwritten.
Migrate: Click the button to migrate the project to the selected environment. If there is already a project with the same name in the target environment, a message will ask you to confirm that you want to migrate, as this will overwrite the existing project with the same name. Upon successful migration, the project in its new environment will open in the project designer.