If you have questions on the Acceptance Test Library then vist the Yammer group:

https://www.yammer.com/dynamicsaxfeedbackprograms/#/threads/inGroup?type=in_group&feedId=5916876800&view=all

You can find the official documentation here:

https://docs.microsoft.com/en-us/dynamics365/unified-operations/dev-itpro/perf-test/acceptance-test-library

Also Thank You! to everyone who joined the ATL Web Conferences. It's great to see all the passion and attention for testing.