Hi Dima,
Sorry for the late reply.
Unfortunately, currently the plugin can’t do that. You could use our “Visibility Options > Products” options to create a separate field for each product in your shop, however, this is not the “right” way – in case if you have a lot of products in your shop. Also, this won’t solve the task with multiple items of the same product in the cart. This seems like a useful feature though, so I’m going to add it to the plugin. However, it will take some time (I’m planning to release new plugin version sometime next week), so I’m not sure if you can wait till then?