How to view an xmgr file from within ccp4i

The scala program part of the CCP4 suite outputs the results of the Normal Probability Plot and the anomalous probability plot as *.xmgr files. These are files that contain inputs to the grace plotting program

To view these files you need to install grace as its called currently ( previously it was called xmgr or ace or even xmgrace) . To install grace on OSX Leopard for eg. use fink

fink install grace 

Installing grace using fink  results in a binar execuatble called grace in /sw/bin . Scala and ccp4 expect the grace binary to be called xmgr and reside in the path. This can be brought about by linking the grace binary to xmgr and putting it in /usr/bin or even $CCP4_BIN .

ln -s /sw/bin/grace /usr/bin/xmgr 

Once this is done , right clicking the Normal probability or any xmgr plot in the CCP4I interface should bring up the plot in a grace window.