How can I set the Freeview Window and level values using command line?   In example, we can set colormap using command line.  But how can I set window and level using command line rather than GUI slide bar.  

Thanks

Frank

freeview -v \
good_output/mri/T1.mgz \
good_output/mri/wm.mgz \
good_output/mri/brainmask.mgz \
good_output/mri/aseg.mgz:colormap=lut:opacity=0.2