This recipe will cover how to see who is waiting to receive a particular step within a sequence.
Infusionsoft Cookbook – Chapter 9.9 – Reporting On Who Is Queued To Receive A Specific Campaign Step

Paul Sokol's Official Infusionsoft Cookbook (Keap Compatible)
The Authoritative Sales & Marketing Automation Cookbook
This recipe will cover how to see who is waiting to receive a particular step within a sequence.