In the Apps section, select Google Calendar and install it:

The system will suggest an account with which to sync the calendar. You can also choose, if needed, to sync 1:1 meetings, performance appraisals, time off, birthdays and anniversaries, and whether a conference should be created for each meeting:

Next, follow a few simple steps to complete the synchronization:

And finish the installation:

Upon successful completion, the status will be installed.

After this, all the company events specified during the setup—such as 1:1 meetings and performance appraisals in this case—will be displayed in the Google Calendar of the synced account. Only the account owner will see this information in the calendar; it will not be accessible to other employees, except for the meeting participants. If needed, these events can be deleted from the calendar.