Hi, I have recently downloaded Chimera x 1.10, in which I am trying to change the size of sticks and spheres in ball and stick model but the commands I am trying to were not working with error message "Expected a keyword" Here are the commands which I am using Style stick/sphere set stick/sphereRadius 0.3 setattr Radius 0.3 target #3 set stickRadius 0.3 target all size #1 ballScale 1.5 size #1 ballScale 1.5 size #1 ballScale 1.5 setattr m ballScale 0.5 style ligand ball vdw scale 0.8 set stickRadius #3 0.35 set stickRadius 0.3 target sel set stickRadius 0.3 target all set stickRadius 0.3 target all set stickRadius 0.3 target all Unfortunately none of them is working in my command line, will you guys plz help me to to change the size of sticks and sphere in ball & stick model. i am using iMac computer. Best regards Prashant