When you will restart XWidget or your pc the shortcuts are saved, no..?
Now, when you completely close widget, and this happens for all the widgets in general, the configuration returns to the default. I'm pretty sure that a particular script can do the job, but I don't know the form.
The other thing that you can do is to edit the widget and the shortcuts from the inside with the path that you use, and all be saved 100%

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