When trying to schedule and e-mail reports I don't have the ability to alter the canned reports under the Service > Report perspective. I'm looking to create a report that will e-mail a list of jobs that run on specific applications for the prior 24 hours.

How to schedule a report and send it by Email.

CA Workload Automation DE

You cannot alter the canned or pre-defined reports but you can schedule the report and send it by email. Also, you can create custom reports as per your requirements.

Please refer to the following documentation and video for more information;
Schedule a Report
Schedule a report using the Report Event