Is it possible to add Physical Product to Route?

Hello everyone!

3 people's approval is required before the product can be promoted to Released status. If 3 different people approve, the product can be Release. I thought this could be solved with Route Management. But I cannot add the Physical Product or Part I created to the Context field in the Route. Any chance of adding Physical Product to Context?

Is there any other process you can suggest?

Thanks in advance!