Answer:
Instead of a Mazzy answer. You can right-click on your Xaml and select "Live Run". This helps if ShortCut "Shift + Alt + F5" is not installed.

Additional Information:
When you start Live Run, the currently selected view will be expanded and displayed on your device. When you switch to another ui file, another file will be expanded and displayed.
Live update
Live updates seem to happen if there is no syntax error and you save the file.
Thanks beppe for clues
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