I am trying to create a PopUp Confirmation runed by action.
I need to load the Screen Confirmation when the action save is runed, but the Screen Confirmation must be called into action save.
Could help me?
Best Regard
I am not sure what you mean.

When you have a button, in the properties there is a at the On Click an attribute "Confirmation Message" where you can fill in your message for confirmation.
Is that enough?

Otherwise you want to have 2-step save.

visible button: does some check, and executes a widget_click() on the hidden button.
invisible button: show teh confirmation box and does the actual save, if they say yes, otherwise nothing happens...