You can share an Action with other Context by navigating to the Available From tab in the Action editor.
Many a time, with rich navigational capabilities on web applications, an Action may be applicable in multiple Contexts.
On an e-commerce application, “Navigate to Home Page” may be available on all the application pages. In such cases, you can define the Action in one Context and share it with other applicable Contexts, hence avoiding duplication of logic.
When you are building Scenario workflow, this Action is available in all the shared Contexts.
How to share a Context
On the Action Editor view, click "Available from" tab on the sidebar. You will see the list of Contexts with which the Action is shared. Click on the "+" icon above the list and select the appropriate Contexts to add for sharing.
You can Ctrl-click or Shift-click to select multiple Contexts in one go.