For your current workplace pension pot, make sure you have added in your monthly contributions (both your contributions as an employee PLUS your employer's contributions found on your payslips) This will then be represented as 'Current' in the Pension contributions slider.

Your 'Target' pension contributions will be the estimated contributions you'll need to make (both your contributions as an employee PLUS your employer's contributions) to achieve your 'Target retirement', the green line in your Retirement Planner graph.