Initializing Variables in iOS Beta

Is there any way to initialize variables when a screen is loaded? Variables are handled a little differently in iOS Beta vs. the android, and so far I have only been able to initialize them by doing it from a button click. Including a “When Screen1 Initialize” block would also be very helpful.

Closing this now @KaneoheKid as this issue has now bee resolved:
https://docs.thunkable.com/release-notes#oct-10-2018