Combining Histograms of Multiple Tests?

I have two independent tests in one of my adexl testbenches that I am running Monte Carlo on. I point to the same cell in both tests but the difference is that I have a different vector file used for generating a load response on the output. I know there is a way to combine multiple corner sets within a testbench for a given Monte Carlo run, but I was wondering if it was also possible to combine the histograms of two tests? If this isn't possible my next step was going to be putting two of these blocks in 1 test which I was hoping to avoid.

Thanks!