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Navigate to the folder of the experiment you are interested in, pick a run, and relive the data all over again.
s3df offline ami has some issues and does not show pedestals properly.
Instructions for AMI-II
source /sdf/group/lcls/ds/ana/sw/conda1/rel/ami_current/setup_env_lcls1.sh
ami-local psana://exp=mfxx1010622,run=58