The answer to your question will depend on what product you are referring to. If you are using PowerSchool SIS, then you can definitely create a custom report. Without more information about what you want in the report and which product you are working with, we won't be able to provide you with specific details for creating the report.
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Good Day! We have the option to build the customer reports in eFinancePlus using Custom Cognos Reporting. I recommend working with the Technical Contacts or the eFinancePlus administrators in your school district who should be able to connect you with the PowerSchool services team who should be able to take this forward for you.