What makes a "Scenario"? Needs documentation

[nlaws-camus]

It took me awhile to figure it out, but I think (based on the docs and some code sleuthing), a Scenario allows a user to specify different PV and Storage inverter controls. Are there other use cases for a Scenario? For example, can one specify a different loading or DER penetration scenario?

In general it would be very helpful to update the documentation, specifically the Scenarios section for this issue, which has:

Scenarios

Each scenario provides customizable config files in <project-name>/Scenarios/<scenario-name>. Refer to these subdirectories:

• pyControllerList
• ExportLists

What is meant by "refer to these subdirectories"? Is there a list of the values that can be specified in those subdirectories when setting up a project?

There is also this empty PyDSS page in the docs. Perhaps this page should contain a high level summary of what one can do with PyDSS?