Accessing logs in the Designer (process models/functions)

Hi

We have an application in the cloud, and the requirement is to track their last login date and display in an interface in Appian.

I found where the log file is, appiancloud.com/suite/logs/login-audit.csv.

But I can't simply set up a connected system/integration/web api in Designer as it requires a strange authentication process that can't be captured in that setup.

Is there another, more native way of accessing the logs in Appian Designer? 

Thank you,

Saeed