How to be able to build with iOS 13 and iOS 12.4?

I have a new machine with a fresh install of the latest XCode (xcode 11). When trying to do iOS build, it only allow me to build with iOS 13 (see screenshot). So, I went ahead and downloaded XCode 10.3, copied it into Application/ started XCode 10.3, then restarted Corona. But I still see that I can’t choose iOS12.4. 

What else should I do? I tried running the xcode-select command, but not sure what the options I should use are. 

Appreciate the help. 

Why do you want to build with 12.4?

From looking through the forum, it seems that iOS13 still have a number of issues that still need to be sorted out - receipt format changes, oneSignal issues, etc. So, we would like to continue releasing with 12.4 until the 13 issues are sorted… 

You need to run “xcode-select” on the command line and select the path to your Xcode 10.3 install.

Rob

For others who may run into the same issue, a colleague showed me that if you were to change the xcode version directly from the XCode->Preferences panel, then you can enable the different versions of the iOS builds as well.