[chimerax-users] reduce gridpoints on the cryoEM map (640 x 640 x 640 ) to ( 320 x 320 x 320)

hi, i need to reduce the grid points to make the map work with MOE. I am not sure if this is possible in chimerax and i would appreciate some suggestions for creating a mrc file with reduced grid points. please let me know your thoughts. best amith