Just tested this. I didn't create a setting but mostly just deleted users through the "test" worked perfectly. Over 40k accounts just deleted. Still got 60k to go through.

NOt sure if I am doing this correctly...I set my rules, clcik "Test" and get a list of 14,000 members. I then click "Select All" (all users have a check mark), "Delete" then "Go".

I get an error "Invalid Action Selected" "No User Matched Your Query".

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Do not need to run the script manually.