In Tableau 2018.3, when you add an Action, you will find the Go to Sheet... action, highlighted as follows:

This action is straightforward: from one or multiple source Worksheets, you can navigate to a Target Sheet (Worksheet, Dashboard, or Story). The following screenshot shows the configuration window, when you add a Go to Sheet... action: 

In this configuration window, you can specify the following:

• The Name of the action
• The Source Sheets
• The trigger (Hover, Select, or Menu)
• The Target Sheet (Worksheet, Dashboard, or Story)

This action is quite similar to the Button object, as both allow you to navigate between your sheets. The difference, however, is crucial: one is a configurable Dashboard object, while the other is an action based on a sheet and a trigger.

The second new action allows you to create new ways to interact with your Worksheets.