So I discovered from xtriage that my crystal is twinned.  I have a pretty decent model that xtriage says has an r/rfree of 30/30 to a resolution of 2.6. I wanted to try a phenix.autobuild at 2.8A.  I couldn't find a parameter flag for autobuild that turns on twinning. 

I already autobuilt this model once, and the xtriage log did find that the crystal was twinned, but twinning in refinement of the model during rebuilding wasn't turned on. 

Is there a way to tell autobuild to rebuild using twinning? 

Thanks

FR