Hi there,
The Dashboard in QuickBooks Online is the main page of your account that will display some user-friendly graphics of your account information. I know how handy it would be to have the option to customize or add shortcuts to the Dashboard, and I'd be happy to explain how this works in QBO.
At this time, the option to customize your Dashboard isn't available. I know many of our users have expressed the desire to have this option in the future, and I'd encourage you to submit your thoughts about this to our product development team. You can do that by clicking the Gear icon > Feedback.
Tons of features you see in QBO today are the result of customer feedback, and we always look forward to reading your ideas.
I hope this helps clear things up for you. If you have any other questions or concerns, please reach out to our tech support team.
Have a great rest of your week.