KJ,
like sptrader pointed out, plotting the inverted value probably is the only chance you have at the moment.
If you create four plots inverting Open, High, Low and Close and formating the plots accordingly i.e. Open as Left Tick, High as Bar High, Low as Bar Low and Close as Right Tick, you will get a bar build with these four plots. Adding this to subchart one as scaled to screen and making the price bars invisible is as close as you can get.
Code:
Plot1(Reciprocal(Open), "Open");
Plot2(Reciprocal(High), "High");
Plot3(Reciprocal(Low), "Low");
Plot4(Reciprocal(Close), "Close");