[Chimera-users] color key creation

Friends, I am using chimera version 1.5 (build 31401 downloaded on 2010-09-16). I have opened two pdb files A and B. I also opened two attribute files corresponding to A and B and colored the ribbon based on the attribute. I want something like the following A B Colorkey 1 Colorkey2 My problem is creating the individual Colorkey. I chose model A (in the Depiction-> render by attribute -> create color key ) and created Colorkey1. When i did the same for model B and use my mouse for colorkey2 creation. Colorkey1 is deleted and Colorkey2 is created below the model B. Is it a bug. Precisely, if i hve to create two Colorkeys corresponding to two different models, how can i do that ? Thanks, Bala