Can't test in Simulator

Greetings.

I'm using Unity 2018.2.17f1 on macOS 10.12.6 with XCode Version 9.2 (9C40b).

I want to test in the iOS simulate to be sure things work well on the new notched iPhones (which I don't have).

The Unity iOS Basic documentation says:

Can Unity-built games run in the iPhone Simulator?
A: No, but Unity iOS can build to iPad Simulator if you’re using the latest SDK. ...​

Okay, so I can build for the iPad simulator. Hmm...

I made a very basic project, with one scene with a couple of UI elements. In the iOS player settings, I set the target SDK to be the Simulator SDK, and the target device to be the iPad only. When I build the project, it does not see any options to use the simulator (even though I have a simulated iPad running).

If I create a blank project in XCode, it sees the simulated targets just fine.

Am I doing something wrong, or is this an issue in Unity?