Default save location

[MartinGM]

I doubt this is possible - but thought I'd ask !
I use Libraries extensively to get, quickly, to folders scattered across a large filing system.
So I would like to set Word's defaiult file location to point to "Libraries" in File Explorer - then I can choose the Library in which I'd like to save a document.
But "Libraries" is a "virtual container" and I haven't found a way to point to it in Word options for the default file location - or at least to open the Libraries section of File Explorer when I go to Save.
Can this be done ?