Dynare_sensitivity extract data from output to reproduce graphs

Dear all,

I am using the GSA toolbox to observe indeterminacy and stability in the model and I get all the statistics fine.
My question is how can I reconstruct the figures of for example the unique stable path graph by myself?
As far as I understand the data is stored in the gsa folder at

modefilename_prior.mat

But I dont know where to find the respective values for plotting for example param1 vs param2.

Thanks

Best,
Stelios