[Report bursting using Jaspersoft Studio 8.1]

Yes you can, although the property is missing in the UI. 

The property "com.jaspersoft.jasperreports.jrs.bursting.job.local.folder" can be set in the "Advanced" tab in the "Bursting scriptlet edit dialog"

The value should be the local host path, in double quotes. ie., "C:\Downloads".

You may also refer to the Dr. Jaspersoft session that covers Report Bursting:

 

[Version Control of JasperReports Server]

You connect Jaspersoft Studio to the JasperReports Server, and edit the jrxml. 

https://community.jaspersoft.com/documentation/jaspersoft-studio-user-guide-820/v820/configuring-project-jasperreports-server

Alternatively you can use Web Studio (if you have the commercial edition.)

[Version Control of JasperReports Server]

Not that I know of. Version control strategies vary greatly.. The purpose of the article is to describe an approach.

[Creating domains based on AWS Athena]

Here are instructions on how to add a new driver to JRS:

https://community.jaspersoft.com/documentation/tibco-jasperreports-server-administrator-guide/v790/managing-jdbc-drivers 

[Creating a Report using JSON data from a parameter (with subreports)]

The JSON_INPUT_STREAM parameter establishes access to the json parameter when using a JSON query.  

The example includes subreports that handle the actual data. This allows you to query the original string for values.