Support for Multiple Google Calendars under a Single Gmail Account

Please allow connecting and managing multiple sub-calendars (e.g., Chat Vox, A department, B department, etc.) under a single Gmail account. Currently, separate Google accounts are required to sync different calendars. Enabling multi-calendar integration within one account will streamline appointments across different departments or services without needing multiple email logins. it's help in if customer have more different services and department.