you need something to reapply the positioning .... and :Show() on certain (or maybe all) events.
something like
Code:
local function MoveFrame()
MultiBarBottomRight:ClearAllPoints()
MultiBarBottomRight:SetPoint("CENTER",0,200)
UIPARENT_MANAGED_FRAME_POSITIONS["MultiBarBottomRight"] = nil
MultiBarBottomRight:Show()
end
MultiBarBottomRight:HookScript("OnEvent", MoveFrame)
MultiBarBottomRight:SetScale(1.2)
MultiBarBottomRight:Show()
not tested... the 2nd :Show() should make it show at logon if you put all that code in a simple .lua file