How to add two Run Payroll Costing Report with scope as Detail and Summary in the Custom Flow

Summary:

I have created a custom flow from Global simplified Payroll. Then i copied the base payroll flow Run Payroll Costing Report_Detail and Run Payroll Costing Report_Summary flow as Parameter only. I trying to add these flows to the custom flow, but not able to find them under the list. Do i need to make changes in order to make them visible under the list so that i can add them to the custom flow.

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