Actually, if you would really like two different set of 32 gradient directions. There is one way around this in the current version.
Create 2 separate text files with in each respectively a 32x3 matrix.  Then run DKE from the command window with an adjusted DKEParamaters.dat file.
I have attached an example of how the .dat file should look like. Most important fields to pay attention to, are fn_gradients, idx_gradients{1}, idx_gradients{2} and ndir.

Hope this helps! 
All the best,
Emilie