“cache” manages storage of precomputed results, such as molecular surfaces.

cache action [, scenes [, state ]]

action = string: enable, disable, read_only, clear, or optimize

scenes = string: a space-separated list of scene names (default: '')

state = integer: state index (default: -1)

cache enable 
cache optimize 
cache optimize, F1 F2 F5 

“cache optimize” will iterate through the list of scenes provided (or all defined scenes), compute any missing surfaces, and store them in the cache for later reuse.

cmd.cache | commands