I'm sure this is not the platform for this question but I haven't been able to find useful information elsewhere.

If anyone has experience with this app, can they please help explain how it is used?

https://apps.odoo.com/apps/modules/12.0/sale_automatic_workflow/ 

I have deployed it on Odoo v12 and installed it but haven't been able to get any of my Sales Orders to go through the expected "automatic" workflow. From the description, I was expecting that when I click "confirm" Sales Orders, that the workflow would automatically create an invoice and set stock picking as done. Then all I needed to do from there is register a payment.

My end goal here is automate with one click:

Sales Order > Confirm >Create Invoice > Invoiceable lines   > Validate > Register Payment

to

Sales Order > Confirm ... > Register Payment

Any pointers would be much appreciated. Thank you