You can move default MultiBarRight. Here is a small addon that I wrote for myself.
Code:
local _, actionRight = ...
function actionRight()
for i = 2, 12 do
local n = "MultiBarRightButton"
local btn = _G[n..i]
btn:ClearAllPoints()
btn:SetPoint("LEFT", n..i - 1, "RIGHT", 6, 0)
end
MultiBarRight:ClearAllPoints()
MultiBarRight:SetPoint("TOPLEFT", MainMenuBar, "BOTTOMLEFT", 5, 135)
MultiBarRight.SetPoint = function() end
end
actionRight()