Anyway to use SD as internal memory?

I have a Nexus 5 and a Nvidia SHIELD K1 both with Android MM. At my SHIELD I have a 128GB SD and I can choose to use as external SD or internal memory. If I select internal memory SD is formated and joined to tablet's internal memory. But on P9, that uses Android MM, I can't find how to use SD as internal memory. I only have a option to move some apps, not all, to SD, and photos.
Are there anyway to solve it?

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