Answers:

4. Turn on/off the deletion of the restart files
   key-path: postproc:file_handling:with_delrsFE
   note: This is nominally specific to CanESM/CanDIAG (not imsi).

5. Change the walltime required to run the model job
   key-path: sequencing:sequencing_flow:jobs:model_run:resources:wallclock
   note: We are using the maestro seqencer in our example; this value
     will be written directly into the maestro resource file (xml) for the
     `model_run` task.