Lua Code:
ExtraActionButton1:ClearAllPoints()
ExtraActionButton1:SetPoint("CENTER", UIParent, "CENTER", 0, -150) -- Set new position
ExtraActionButton1:SetScale(1) --Scale the button
ExtraActionButton1.style:SetAlpha(0) -- Hide background texture
I use this piece of code. I added the hide background texture option as i find it is not really needed and just clutters the screen. If you want to keep it just remove the last line.