Hello! My name is Benjamin Looker, I am a chemistry graduate student at Cornell University, and our group often uses Chimera to visualize the orbitals output from the DFT software ORCA. When these .cube files are opened in Chimera, the two phases of the wavefunction surface are given different colors and bars in the volume viewer. My question is, when using an alias command, how would one set the level and color of only one of these phases, ie: to perform actions on only one of the bars and colors, instead of homogenizing the whole function? An alias such as: alias ^orbitals volume all level 0.05 color #2d2d00000b0b style surface Is great, but that pesky "all" undermines the point of the operation. I have tried referencing model numbers, such as #0, #1, and #2 instead of "all," but Chimera returns an error. I do not know the label of the object that I am trying to affect. Any help would be greatly appreciated! Best, -- Benjamin G. Looker Graduate Student Lancaster Group