Configure your Scope block to have two inputs, and then use the Mux block to combine both current signals for the first input, and another Mux block to combine both voltage signals for the second input.
Each separate Scope block input is another subplot inside the scope. You can put multiple signals on one subplot by using the Mux block to combine them. You just need to make sure you also set your 'Layout' correctly if you have multiple Scope block inputs.
