When implementing a feature such as push notifications in your 4D for iOS mobile app, you may want to test that feature using multiple instances of Simulator. To do this, first build the app for different iPhone versions. You may select the versions in the Build tab under the dropdown menu next to Build & Run.



This makes sure that the mobile app is available to use in both versions. Then, open Simulator and launch the iPhone instances simultaneously. To accomplish this, go to File > Open Simulator > iOS 14.4 and then select the appropriate versions. Finally, you may launch your mobile app in each of the instances of Simulator and start testing the features.