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