Can we configure "Spend Authorization Approval" for approval by grade?

Summary: Need to configure spend authorization approval based on employee grade, but unable to find grade as a parameter in the if condition in rule of "FinExmWorkflowSpendAuthorization".

Content (please ensure you mask any confidential information):

Steps that I have followed-

• Go to Setup and Maintenance work area.
• Search for and select the task: Manage Expense Approval Rules under Offering: Financials, Functional Area: Expenses.
• Open the BPM Worklist and select the Task Configuration tab.
• From the list of tasks, select FinExmWorkflowSpendAuthorization.
• Go to the Assignees tab and switch to vertical layout to view the approval hierarchy.
• Click the diamond icon on the Authorization rectangle and choose