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See the image below for the most commonly used views in MAEviz.
Scenario View
The Scenario View is where you will find a list of all the data for the scenario or scenarios that you are currently working with. Each scenario that you are working with is listed as a top-level item in this view, which can be expanded by clicking the plus 
icon next to its name, to see the details of the scenario. Inside each scenario, you can see a list of the Mappable scenario data, which are the layers of data that appear in your rendered map, as well as a list of Scenario Data, which includes all non-renderable data for the scenario (e.g. tables).
The Scenario View is also where you would go to do the major operations on your scenarios: adding an earthquake hazard or other data, running damage analyses, etc.
Visualization View
Data Catalog View
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