Default Gl Segment in DFF of Expense Report

Is there any way to default COA one segment Value (Line of Business Segment) in DFF of expense report so we can define approval based on it

Currently All Chart of Account Segments are not available to define approval but customer requirement is define approval based on LOB GL Segment as we have different approval for Different LOBs

Is there any way to define COA Segment Value wise approval or Default LOB in DFF so we can pick and define approval

Thanks