In case anyone else encountered this problem. You have to edit your function and check the "has return value" box. Then your return will work. After this you have to use "Call Function" again and now you have a new field for saving results.
UI button to perform specific function
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@spa3212 said in UI button to perform specific function:
I wonder if it is possible to have a Button on a UI interface. When click it perform a specific Call to function.