Default Default save location for apps

I have been testing and trying a few word apps, I like the Hanscom apps for their funcionality but I don't like that it created a new folder "my Documents", and I see no where in options that I can change the default save location. I can change it under "save as" but not the standard save. So I have essentially 3 documents locations sd card-documents, sd card- my documents, extsdcard documents.
Does anyone know how to change apps default storage location?

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