Commit
In the main toolbar, you will find the Commit button.
The number of files changed is shown as the number in the button.
Clicking this button will open the Commit dialog, where you can review your changes and commit them to the repository backing your project, which holds your device configurations.
You can enter a commit message and view the files that have been changed. A pre-written commit message is provided, but you can edit it to your liking.
Once you are satisfied with the changes, click the Commit button to commit the changes to the repository.
The number in the button should now be zero, indicating that there are no uncommitted changes.