How to pass a message to a substack (or back)?

[Gajo Csaba]

Hi,

I have the main stack, and when I want to add a new item to a list a 
new dialog/substack is opened. Here the user can enter some 
information, and when he clicks on the OK button I want to send that 
information back to the main stack, so it would appear in the list. How 
can I do it?

I tried declaring a variable global but it seems I overestimated its 
globality, cause the other script can't see it. I also tried creating a 
message in one stack, and then I call that from another stack, but the 
message can't be found from there.

How can I do this?

Thanks, Csaba

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