I am also attempting the same thing. I found a crude work around, but it is not dynamic. If you do a "right" click inside the measure column and choose annotate and then area. You can stretch and size your annotate box to cover the selected column, and then you can shade it light enough that your values in your columns are visible. I went with around 30%.
Hope it works for you.
I love Tableau, but I am frustrated with the formatting restrictions when dealing with multiple measures. It is an "all" or "nothing" approach, and it is very limiting.
Have you had any luck with this? I am attempting to also color the data points that fall outside my reference lines, and really to isolate them but have yet to find any helpful way to do it on Tableau's forums.
See if the attached workbook helps. You basically have to create a boolean calculated field that evaluates whether the value is within the band or not. You can accomplish this with some basic table calculations.
ColorOutsideReferenceBand.twbx 16.3 KB
Zac, thank you for your help, this was exactly what I was looking for!