New Halion 7.1 User - External Audio Interface

When I go to the menu to select the audio output I only see the iMac’s internal built-in audio interface. I do not see my UA Apollo audio interface as an option.

I tried to find a solution to this issue in the manual and here on the user site but did not see one.

Does anyone have any advice on how to enable the use of my Apollo audio interface instead of the iMac’s built-in audio interface?

You mean standalone app? it is here in the preference to pick up a device

Yes, I was referring to standalone app.

I had not seen the ASIO menu audio interface choices.

Thank you very much for your help.