You can run apps either from the Apps page or from a running cluster's Sessions tab.
Navigate to Apps.
Click the app you'd like to run.
Select a running cluster with the Target dropdown menu.
Click Run.
You'll be taken to the app's Runs tab, where you can see the current run as it's processing.
This method is only available if you've already started your cluster.
Navigate to your cluster's Details page. A new module, Apps, will appear.
Click the app you'd like to run, then click Run.
You'll be taken to the app's Runs tab, where you can see the current run as it's processing.
For the next steps, please see Monitoring Workflow Runs.