Hello again, Following another old thread, http://plato.cgl.ucsf.edu/pipermail/chimera-users/2016-September/012743.html I could morph/play the coordinates and Volume at the same time. The script is given below. ---------------------------------------------------- # Open maps and set threshold open 1.mrc open 2.mrc open start_full.pdb open end_full.pdb vol #0,1 level .025 # Create a marker for coloring measure center #2 mark true radius 20 color red ~display #4 # Create morph volume vop morph #0,1 frames 0 model #5 # Create morph models model #6 morph start #2 frames 200 morph interpolate #3 frames 200 morph movie # marker on morph measure center #6 mark true radius 20 color red # Color near marker scolor #5 zone #6 range 50 coordset #6 1,100; vop morph #0,1 start 0 playstep 0.01 frames 100 model #6 ---------------------------------------------------- Still the color is at centre of of the first Frame of morph. If I understand correct I have to measure the centre for each Frame and add marker and color it. But I still can't make it. Any help/directions in this regard would be very helpful. Thanks in advance for your time and help. best regards Rajan