Hi @Yoichi thank you for the explanation and examples, this also helped and also worked, in my case I did the following I used a Use application/Browser and created a variable of type UIElement called UiBrowser, then in another workflow I used the use application/Browser again, created an in_UiBrowser argument of type UiElement and passed it in to the Use Application/Browser in the Input UI Element.
This works and I think its the same as if you would do it with open browser, not sure if its the right way but it works 