How do I change the location of the save files?

[appleboy711]

In game, the console says that it saves to "Documents" Which is in my one drive, but now it is running out of space(So is the C: Drive), and I want to put my save files on my external D: Hard drive, do you know how I can move it there?

[Craftyawesome]

You can control the global user directory with https://wiki.dolphin-emu.org/index.php?title=Controlling_the_Global_User_Directory